- Main article: Amethyst
Amethyst is a "defective" Quartz-type Gem created on Earth in the Prime Kindergarten with the natural abilities to be a soldier. She emerged from the ground five-hundred years later than intended, causing her form to be smaller and less powerful than the average Quartz. For an indeterminate amount of time, Amethyst roamed the Prime Kindergarten by herself until being found by the Crystal Gems and joining them.
Before emerging, other recently-made Amethysts in the Prime Kindergarten waited for Amethyst (or as they called her, 8XM) to emerge, but were quickly shoed away after being told she could catch up with them later. Amethyst emerged approximately five hundred years later, by which time all the Homeworld Gems had fled Earth. Before being found by Rose and the others, Amethyst's life consisted of playing with rocks in the Prime Kindergarten. She lived with the other Gems for thousands of years after being found by them, and appears to be knowledgeable on some, but not all, of Gem history most likely taught to her by the others. During Amethyst's time with the Crystal Gems, she learned how to fuse, most likely to have formed Opal, Sugilite, and possibly Alexandrite. Amethyst grew a close relationship with Rose Quartz, describing her to be the person who was always there for her. Over the years, Amethyst poofed a lot due to her clumsiness, as she describes thousands of years later to her Rose's son Steven.
Although Amethyst lives at the Crystal Temple, she still visits the Prime Kindergarten, and met Buddy Buddwick on one of her trips back. Buddy shows Amethyst the map that Pearl drew up for him, and tells her that he's an explorer. Amethyst tells him that he's not really discovering anything, but instead walking in someone else's footsteps. When Buddy is upset by this, Amethyst tells him that he should try finding the sand castle in the Desert, since it's never in the same place twice. Buddy is then on his way, and Amethyst tells him to come back any time, but not too much. Also around this time, Amethyst and the other Gems helped sailors fend off their boat from shark infested water, as seen in an old Gem painting. Amethyst, specifically, is pulling one of the sailors out of the water.
Hundreds of years later, Amethyst met Greg Universe when he visited the Temple in search of Rose. Shape-shifted as an owl, Amethyst flies to Pearl and tells her that that a long-haired human was talking to her about Rose. Amethyst is excited by Greg's appearance, telling him that she likes his long hair. Amethyst gives him the nickname music man after finding out he's a musician.
Another day, Greg and Rose are singing a duet together while the Gems play background instruments. Amethyst played the drums, which Greg promised her Pop-Pop if she did. When Greg is later trying to learn a fusion dance, Amethyst is shown to be experienced. Amethyst is happy to see Rose and Greg together. However, the more time Rose and Greg spent together, the more Amethyst began to change her feelings. Amethyst became hurt that Rose started seeing Greg more than her, and blamed Greg for this. Amethyst never lashed out at Greg though, and the two were close friends. They were known to watch the TV show Li'l Butler for days without leaving the house.
When Rose and Greg have Steven, Amethyst has trouble adjusting to the fact that Rose is gone. Garnet has to continuously explain to her that Steven is a human baby and not Rose. During Steven's first winter, Amethyst and the other Gems visit Greg to give presents for Steven. Amethyst's gift are adult diapers, which Greg promptly points out are too big for him. Amethyst tells Steven to shape-shift bigger so that they fit. When Steven gets excited, his Gem begins to glow, leading Amethyst to believe that Rose is trying to shape-shift back into her old self. The Gems kidnap Steven to try and figure out why his Gem was glowing when Greg is unable to. Amethyst tries to show "Rose" how to shape-shift, not understanding why Rose would be shape-shifted for months, longer than Amethyst was shape-shifted into a toilet. Once the Gems realize that Steven is not Rose, Amethyst accepts the fact that from now on, everything has to be about him.
When Steven gets home, he finds Amethyst, Pearl, and Garnet locked in battle with Centipeetles that have invaded Steven's room. They destroy most of them, but Amethyst realizes that the Centipeetles left behind no Gems after poofing them. Afterwards, the Gems explain to Steven that they purchased some Cookie Cats (which recently went out of business) from a nearby factory since they knew that they were his favorite. However, Amethyst claims to have stolen them, leading Pearl to go back and pay for them. Steven takes a bite out of a Cookie Cat, and his Gem starts to glow. Amethyst tells him to try to summon his weapon, but Steven does not know how. He asks to be taught how to summon a weapon, and visits Amethyst behind the Big Donut. Amethyst explains that whenever she needs her weapon, it just comes to her naturally and demonstrates this by pulling out her whip and slicing a dumpster in half. Amethyst is later present when Steven tries recreating the events that occurred when his Gem began glowing when he still can't figure out how to summon his weapon. Amethyst and the others reassure him when his plan fails, but are taken back when Steven eventually does summon his shield. Steven loses control and his shield starts bouncing around the house and smashes into the TV, which Amethyst finds hilarious.
The Centipeetle Mother appears outside. Amethyst, Pearl, and Garnet go outside, but tell Steven to stay inside. They engage in battle, but are eventually pinned down by the monster. Amethyst remarks how they could use Steven's shield, and her as well as the other Crystal Gems cheer in amazement when Steven finds a different way of subduing the Centipeetle Monster. Amethyst concludes that Steven's powers don't come from eating ice cream, which the latter theorized.
Steven and Amethyst are at Beach Citywalk Fries ordering fry bits when she notices a Red Eye hurtling towards Earth. They join Garnet and Pearl at the beach to come up with a plan to stop the giant eyeball from crashing into Beach City. Garnet tries throwing Amethyst at it, but to no avail. The only way the Crystal Gems can think of to destroy it is to use Rose's Laser Light Cannon, the issue being that none of them know where it is. Steven suggests getting his dad to help, even though the other Gems tell Steven that his dad probably would not have the light cannon. While he is gone, Garnet continues to launch Amethyst at the Red Eye, but she merely bounces off it and plops into the ocean below.
As Steven and Greg arrive at the beach with the Laser Light Cannon, they come across the Gems still launching Amethyst at the Red Eye, which is getting dangerously close to impact with the Earth's surface. The group tries to activate the cannon quickly as the Red Eye begins emitting a gravitational pull and begins destroying everything in its range. They try various methods but nothing works. When Steven eventually figures out how to activate the cannon, it glows, opens up, and the barrel falls on the sand. The Gems help Steven lift and aim it at the Red Eye. When the light cannon fully charges, it blasts out a strong beam of light and destroys the Red Eye. Amethyst congratulates Steven by telling him he saved "most of Beach City".
Amethyst tries to get a large egg into the fridge while Pearl is discouraging her. Later, Amethyst wants to bring Steven along on a mission under the pretext of education. After Steven succeeds in using sweaters as a rope swing, Amethyst pulls out her whip and brings her and the rest of the Gems over. Later, Steven apologies that the spire sunk, but Pearl and Amethyst cheer him up saying that 50% of his ideas worked. Later, Amethyst and Pearl start chanting "cheeseburger backpack" over and over again.
A shape shifted Amethyst as a policeman called the "dumb police" starts yelling that Steven is dumb. Steven tells Amethyst that he knew of her disguise the entire time. He puts on a new shirt which Amethyst squirts with her water gun again. Pearl comes out of the Temple using Amethyst's door and is mad at her for taking one of her swords. Amethyst claims she did not, but rushes back in after Pearl mentions that she cleaned her room. Later, Steven lands in Amethyst's room with the breakfast still intact. Amethyst notices him and complains that Pearl always accuses her of taking her things, but in reality, they always fall down the waterfall into Amethyst's room. She then proceeds to mess up her room again to her standards. Steven says that it still looks pretty messy, which pleases her. Then she notices Steven's breakfast and she insists on eating it. Steven starts running, telling her that it is for everyone, but she still chases him through the Temple. Steven jumps on the pole to the Crystal Heart and slides down it. Amethyst and Pearl catch up with him. Later, the breakfast squashes Garnet and Amethyst with a waffle. Later, Garnet, Amethyst, and Pearl help Steven make another Together Breakfast which is bigger and better so they can all share it.
After Steven and Greg finish cleaning Mayor Dewey's Van and play fight with the water hoses, a cat holding a hose in its mouth starts spraying Steven and Greg. The cat reveals itself to be Amethyst. Steven asks Amethyst if he could shapeshift like her as they walk to the Crystal Temple. When they arrive Amethyst shows off her shapeshifting powers, and Pearl tells Amethyst that just because she can shapeshift doesn't mean she should. Steven asks Pearl if she could shapeshift. She answers that all Gems can, and Amethyst interrupts by shapeshifting into Pearl and mocking her. Pearl leaves and Steven asks Amethyst how to shapeshift. Amethyst explains her methods of shapeshifting, and Steven attempts to turn into a cat. He manages to transform one of his fingers into a meowing cat head. Amethyst then tells Steven to show it to his dad, and Steven runs around showing off his cat finger. Later in the episode, Steven returns to the Crystal Temple and asks Amethyst for help returning his fingers to normal, as the Gems are leaving to fight a "living island". Pearl insists that they stay to help Steven, but Garnet says they can't because the mission is urgent. Pearl blames Amethyst for this; Amethyst replies, "that's fair." Pearl tells Steven to stay calm as they leave. The Crystal Gems return the next day, and Pearl rushes to ask if Steven is okay. She then begins to lecture Steven about him listening to her instead of Amethyst, to which Amethyst agrees.
After Steven's first confrontation with Connie, Amethyst, who had been observing, teases him about liking her. After Garnet tells Steven to just talk to her, he asks the three not to watch him this time. Later, Amethyst, along with Garnet and Pearl, meets Connie formerly and introduces herself.
Steven catches Amethyst sneaking out of the temple at night. He follows her to an underground wrestling arena, where she battles under her alter ego as the Purple Puma. Her persona is enormously popular, with Lars Barriga being among her fans, and when she later leaves the ring she is confronted by Steven, to whom she divulges her life as a wrestler and how she indulges in it to feel powerful. She agrees to takes him on as a teammate, "Tiger Millionaire". Fighting side by side, the two become a strong duo in the ring, but lose popularity after Steven treats Lars badly. The next night, the party is crashed by the arrival of Garnet and Pearl, who scold Amethyst for using her powers on humans and fighting unnecessarily. This infuriates Amethyst, who feel that the two are taking away the one thing that makes her feel strong. This culminates in a faux wrestling match between the four, causing the Purple Puma and Tiger Millionaire to win back their popularity.
While on a mission, Amethyst succeeds in securing the Desert Glass, but insists on not bubbling it right away, reasoning she can do whatever she wants with it since she is the one who obtained it. When she and the other Crystal Gems walk back to where Steven is, they find that he has befriended a pink lion. Amethyst is charmed by the lion, but Garnet and Pearl insist that Steven leave it behind. Later, back at the temple, Amethyst uses the Desert Glass as part of a fort she and Steven take a nap under. While she is sleeping, Lion comes to the house and spends time with Steven. However, when Steven realizes Lion is just here for the Desert Glass, he chucks it out onto the beach. There, it starts constructing and demolishing sporadically. The noise awakens Amethyst, who is promptly scolded by Pearl for not bubbling it while she had the chance, to which she expresses apathy. After the situation is contained, Pearl questions whether they should let Steven keep Lion, with Garnet responding that they kept Amethyst.
Amethyst and Pearl are playing a game of checkers on the beach, with Steven sitting above them hitting them with water balloons every time one of them loses. Pearl defeats Amethyst, who is willingly pelted by water balloons. Pearl sternly remarks that she hopes Amethyst won't respond this well to losing in combat, and Amethyst bemoans that they don't form Opal anymore since Pearl isn't any fun. While the two argue, Steven asks what Opal is. Pearl explains that Opal is the product of the two cooperating enough to perform a fusion dance, which rarely happens due to their conflicting personalities. In the house, Pearl and Amethyst continue to argue, then Garnet assigns Steven, Amethyst, and Pearl to collect the Heaven Beetle together. The three warp to the Sky Spire and being making their way to the top. While there, Steven continues to question them about Opal and encourage them to fuse, to no avail. He sings the song "Giant Woman" while Pearl and Amethyst continue to antagonize each other.
When they reach the top, the beetle is nowhere to be seen, but their confusion is interrupted by an attack by the Big Bird. Amethyst and Pearl finally agree to forms Opal to defeat the bird, but unable to cooperate and fail to fuse. Immediately after, Steven is eaten whole by the bird, which turns out to be the things that makes Amethyst and Pearl willing to work together enough to form Opal. Once fused, Opal pulls Steven out of the bird and fuses Amethyst's whip with Pearl's spear to form a bow, which she uses to destroy the bird. She then helps Steven up as he marvels at her. They warp back to the temple, only then realizing that Opal doesn't have the beetle, causing her to fall apart. Unfused, Amethyst and Pearl continue to bicker and blame each other before Steven remembers he has the beetle.
While searching Amethyst's Room, Pearl is disgusted by her untidiness. Steven finds a painting of the Crystal Gems from several centuries ago. While Steven marvels at the ages of the Gems, Amethyst becomes nauseous from the five-year-old burrito she just ate. Later, Steven throws Amethyst the first birthday party, and she spends the whole time goofing off. When Steven dangles a piñata over her head, she uses a bat to whack it into the ocean, but is adamant when Steven tells her it had candy inside. At Garnet's party, Amethyst shapeshifts into a toddler so she can drive a small car provided by Steven, causing him to question if he really is too old for birthdays. Later, while cleaning up the birthday parties, the Crystal Gems are approached by Lion, who is carrying Steven, aged to an old man. The Gems desperately try methods to age him back down to his normal self, but nothing works. While the three argue, Steven yells at them to stop arguing, aging down to a middle-aged man. His age continues to fluctuate as the Gems assure him of how much they love and appreciate him, eventually aging him back down to a twelve-year-old.
Amethyst and the other Gems visit the Dead Man's Mouth, where they surround the area with police tape to ward humans away from it.
When Pearl is showing Steven how real sword-fighting works, Garnet and Pearl linger in the stands, with Amethyst cheering on Holo-Pearl. When Pearl is stabbed and poofed, Amethyst assures him that she will be fine and regenerate a new body in due time, mentioning that she is poofed more often than anyone else. Two weeks later, Amethyst laments that Pearl still hasn't reformed, but reacts coldly to Holo-Pearl. On the beach, Amethyst, on a whim, eats a cloud she made, which causes her to become loopy and blow up like a balloon. When Pearl does eventually reform, Amethyst tells her she got hit by an airplane.
The Crystal Gems warp to the Communication Hub, which has been transmitting sporadically lately and thus needs to be destroyed. Amethyst shapeshifts into a bigger version of Steven and starts punching one of the pillars, but Pearl insists that isn't efficient enough. Garnet announces that the job will require Sugilite, the fusion between herself and Amethyst.
Pearl protests that Sugilite is too unstable and pleads with Garnet to fuse with her instead, but Garnet ignores her. Amethyst and Garnet fuse, exciting Steven. Once fused, Sugilite puts on a display of shear power violence, fusing Amethyst's whip with Garnet's gauntlets to form a flail. Sugilite easily takes out each of the towers, but in the process a piece of rubble accidentally hits Steven in the face. Furious, Pearl yells at Sugilite that she's just "too much", to which Sugilite snidely berates her by suggesting that she's "too little". Pearl warps back home, taking a protesting Steven with her. Immediately after they leave, a boulder lands on the warp pad, destroying it. Later, Sugilite makes her way across, the ocean, enraged that Pearl left her behind. By this point, she has begun to lose her sense of individuality, and begins a brawl with Pearl, who is trying to make her unfuse. The much-smaller Pearl is easily defeated by Sugilite and nearly gives up, but Steven insists that she is stronger than Sugilite since she is strong "in the real way". Pearl challenges Sugilite again. She manages to chase her off a cliff, and at the bottom she is crushed by her own flail. She unfuses, and Amethyst and Garnet lie on the ground, exhausted from being Sugilite for so long. Pearl, relieved to have her friends back, hugs them both, which they find physically painful. While Pearl, excited over her success, is rambling, Amethyst questions how long this will last, but Garnet insists that they deserve it and to just take it.
Steven struggles to decide which Gem to take to dinner with Connie's parents to present as his mother. While Pearl, who hates eating, bemoans that it has to be dinner, Amethyst mentions that she loves eating but finds it weird. Steven briefly considers Amethyst to take to dinner, but decides she's too gross to be a mom, also deciding against Garnet and Pearl. Steven solves the problem by asking all three Gems to come together, fused into one. The Gems are initially resistant, but ultimately cave in. Later, at a restaurant, Connie and her parents have been waiting for nearly twenty minutes when Alexandrite shows up with Greg and Steven on her shoulders. Connie's parents are intimidated by Alexandrite's enormous stature and imposing behavior. Alexandrite (tries to) eat all the breadsticks in one bite, making Connie's parents even more nervous. Connie's mother asks Greg how he met his "wife", and when he is unsure how to respond, Steven blurts out that the two met on a roller coaster after she was too tall to ride. Upon being questioned about his "mother"'s occupation, Steven responds that she works on an apple farm where she uses all six of her arms to pick apples. After Alexandrite accidentally insults Connie's mother, Connie takes Steven away to talk to him, and when they return Amethyst's part of the fusion tries to eat some of the food offered, but is resisted a horrified Pearl. Garnet's part of the fusion attempted to maintain the peace between the two, resulting in the six-armed Alexandrite physically fighting herself. The stress on the already-fragil fusion splits her back up into three. While Pearl expresses her disgust towards eating, Amethyst comments that she loves eating, and both of them are smacked by an irritated Garnet. Embarrassed, Connie runs away, pursued by Steven. After they board a bus taking them away, the three Gems, having fused back together again, chase after the bus, picking it up and demanding that Steven and Connie exit.Back at the restaurant, Alexandrite has unfused again, and Steven is now being scolded by Garnet, Amethyst, and Pearl for trying to run away, with Amethyst warning him that he and Connie could have been thrown in prison. Connie's parents, hearing the scolding, decide that Steven's father and the Crystal Gems are responsible caretakers and allow Connie to continue her friendship with Steven.
Amethyst, along with Garnet and Pearl, attempts to fuse with Steven, but the two goof off and none of them succeed in fusing. To comfort Steven, Amethysts tells him that even they have trouble fusing together, and acknowledges that as a half-Gem half-human, anything could happen with Steven. Later, when Stevonnie bursts into the house, an excited Amethyst tells them they look great together, giving them the name "Stevonnie".
Garnet, Amethyst, and Pearl arrive back from a mission bearing some of Peridot's Flask Robonoids. Amethyst comedically squashes one, causing goo to squirt everyone. Pearl explains Gem colonization as vaguely as possible to Steven, visibly upsetting Amethyst. Steven compares the Gems not having a home to The No Home Boys, one of his favorite book series about some boys who have no home. Steven, experiencing wanderlust, longs for the open road, and Amethyst suggests they run away. They back satchels for themselves and leave, running around the countryside and having adventures, ending with the two in a moving box car at sunset. Steven says he's done being a No Home Boy and wants to go home. Amethyst responds that the temple is not her home, and Steven recalls that she is from Homeworld, but Amethyst snaps that that's her home either. Steven asks her where she's really from, and she smirks and tells him she'll show him. She takes him to the Prime Kindergarten, a barren canyon filled with thousands of Gem-shaped holes. Amethyst tells him this is where she was made, and shows him old rocks she used to play around after she first emerged. She eventually shows him the hole she came out of, unnerving Steven. It is then that Pearl warps into the Kindergarten, Garnet having told her that's where they where. Pearl scolds Amethyst for bringing Steven to a Kindergarten. Steven asks Pearl if Amethyst was really made there, causing Pearl to demand Amethyst tell her how much she told Steven. Amethyst, against Pearl's protests, tells him how "bad Gems" came there to make other bad Gems, and the Crystal Gems fought a war so the Earth wouldn't be used to create "more parasites like me!" Pearl apologizes to Steven, saying that she never wanted him to see "this horrible place". The remark proves to be the last straw for Amethyst, who goes berserk and starts attacking Pearl. They fight, Amethyst yelling the whole time about how she hates herself and hates Pearl for reminding her of how bad she is, culminating in Amethyst breaking down crying and saying she never asked to be made.Steven rushes between the two, pleading for them to stop fighting. It is then that one of the injectors, which was damaged during the fight, topples over. Steven casts a bubble around himself and Pearl, but Amethyst runs away from them just as the injector falls to the ground. When the dust settles, Steven finds Amethyst in her hold, and she tells him to go away because she's bad and he shouldn't be around her. He tries to comfort her, but she insists he can't understand because he wasn't there. Steven then tells Pearl that she is the one who has to talk to Amethyst because she understands everything that happened. Pearl climbs into the hole and tells Amethyst she had no idea she was upset about this, which shocks Amethyst. Pearl's further attempts to comfort Amethyst leads to her accidentally insulting her, making things worse. Pearl finally says that Amethyst is not responsible for anything that Homeworld did to the Earth leading to her creation, and that she considers her to be the one good thing that came out of Homeworld's invasion, something Pearl had thought Amethyst was proud of. Her words finally coax Amethyst out of her hole, and she hugs Pearl, finally comforted. The three Gems go back to the warp pad and warp back home.
Garnet, Amethyst, and Pearl are all on the beach, apprehensively looking up at the Gem Warship and preparing to attack it. The Gems ready the light cannons on the house and fire, but the approaching ship easily deflects the blows. The Gems eventually start loading up Greg's Van for Steven and his father to evacuate in. The pair leave as the Crystal Gems wave goodbye, and the Gems relapse into worry again over the new threat. Steven eventually return to Beach City to help the Gems. He finds that the ship is now much closer and Amethyst and Pearl have fused into Opal to fight it off. Opal uses her bow to attack the ship, but to no avail. They then realize that Steven is there, and Opal falls apart out of shock. The ship finally lands, and Lapis, Peridot, and Jasper emerge from it. Jasper is disgusted by their diminished threat and calls the Gems degrading names, with Amethyst being dubbed a "puny overcooked runt". She order Peridot to fire at the Crystal Gems with the ship. Garnet instructs Steven to leave while he can, but Steven resists, summoning his shield to block the attack. Jasper is alarmed that "Rose Quartz" is apparently alive. Garnet attacks her but is poofed by Jasper, much to the horror of Amethyst and Pearl. They rush to attack Garnet as well, and Steven is knocked out by Jasper.
Steven wakes up worrying about the location of Amethyst and Pearl. He leaves his cell without difficulty and starts looks for them and Garnet. When Garnet is formed, she instructs him to find Amethyst and Pearl, and gives him a brief glimpse of future vision to find them in their cells. He finds and frees them, and they all go to the control room and steal control of the ship from Peridot, with Amethyst using her whip to tie her up. The ship crashes, but they Crystal Gems are unscathed. Amethyst is surprised that Steven met Garnet's individual components. She and the other Crystal Gems watch when Jasper and Lapis fuse to make Malachite and Lapis's half of the fusion uses her powers to drag them into the ocean.
Steven comes into the house asks Amethyst to take an online personality quiz based on his favorite show, Crying Breakfast Friends!, which she finds weird. Nonetheless she relents, but grows bored and wanders back to her room, where she finds Garnet. Garnet says she came to the room to find The Slinker, which crawled into the room. While sifting through her things, Amethyst is strangled by the monster and poofed, upsetting Steven. Garnet reminds him that it is only temporary and Amethyst will be back soon. Sure enough, Amethyst hastily reforms, but has a pair of legs where her arms should be, which she claims was intentional. She overhears Garnet telling Steven that she should have put more time and thought into her new form like Pearl did. Amethyst is irritated at being compared to Pearl, but is immediately poofed by the monster again before she can continue. Garnet remarks that this is a good chance for Amethyst to pick a better form for herself, but when she reforms seconds later, her outfit is a parody of Pearl's. Amethyst also mimics Pearl's speech and demeanor, and when Steven has he answer more questions from his quiz, answers as she thinks Pearl would. She is annoyed when Garnet expresses her disapproval at Amethyst's new form, telling her it becomes her business when it makes the team weaker. Amethyst interprets this as Garnet wanting her to be physically stronger. She is grabbed by the Slinker again and poofed. When she reforms again, her new form is unsymmetrical and awkwardly proportioned, with muscles bulging in odd places. Garnet informs her that her new form is unsustainable, agitating her. She runs off to fight the Slinker herself.
Garnet and Steven find her and the monster trying to strangle each other. Amethyst demands to know what Garnet wants her to be, but Garnet responds that she can't decide for Amethyst and it's something she has to figure out for herself. This statement further enrages Amethyst, who continues, fighting the monster. Steven says aloud that Amethyst simply doesn't want to think about herself, stunning Amethyst, who is poofed yet again by the monster. Garnet punches the Slinker away and Steven catches Amethyst's gemstone. Four hours later, Amethyst still has yet to reform, which Pearl says is the longest she's ever taken to regenerate. Garnet regrets being too hard on her. Amethyst finally reforms with a new outfit similar to her old one. The Crystal Gems are all approving of her new form and hug her. Amethyst says that this is "dumb", but is secretly happy.
Amethyst is deeply confused by Crying Breakfast Friends!, one of Steven's favorite shows. The two are watching it together when the broadcast is suddenly interfered. Amethyst tries to whack the television to make it work again, but only picks up a video made by Peridot, pleading to Homeworld to send her help. Garnet concludes that the message was sent from the Communication Hub, and when they all arrive there on Lion they find that Peridot has partially repaired it. Steven suggests that Amethyst and Garnet fuse again to destroy it, but Garnet refuses, recalling the last time they fused and went berserk.
She asks Pearl to fuse with her instead. After fusing they form the glamorous and showy Sardonyx, when easily destabilizes the hub. Amethyst is annoyed by the fusion in spite of Steven's enthusiasm, especially after Sardonyx compares her elegant nature to Sugilite's violent one. After unfusing, Garnet and Pearl embrace each other eagerly, excited by their glamorous victory, while Amethyst sits to the side, feeling left out. Back at the beach house, Amethyst is still disgruntled while Steven and Garnet are watching Cyring Breakfast Friends!, but the TV is interrupted again, and the Gems warp back to the hub to find that it's been repaired again. Garnet and Pearl fuse again, and while Sardonyx demolishes the tower, Amethyst realizes that the main reason she enjoyed fusing with Garnet was because it made her feel strong, and laments her feelings of inadequancy compared to Garnet. To make her feel better, Steven takes Amethyst back to the hub later in hopes of catching Peridot repairing it. They observe Peridot's escape pod repairing the tower, but are shocked when they realize Pearl is the one inside. Amethyst realizes that Pearl has been fixing the tower deliberately as to receive more opportunities to fuse with Garnet. When the Gems warp back to the hub again, Garnet and Pearl prepare to fuse, but Amethyst and Steven interrupt and reveal that they saw Pearl repairing the tower so she could fuse with Garnet. Garnet, feeling as though she has been used, is furious with Pearl. Amethyst rushes to Pearl's defense, pointing out that they are both weaker than Garnet and fuse with her to feel stronger, but Garnet barks her down before ordering Amethyst to fuse with her as to destroy the hub once and for all. They fuse, and Sugilite knocks down the tower while Pearl watches, horrified with herself. Later, Steven and Amethyst are watching Crying Breakfast Friends! in the house. Amethyst observes a character in the show easily being forgiven for hurting her friend while Garnet and Pearl walk past each other without saying anything. Amethyst says aloud that she wishes things could work out like they do in cartoons, which Steven agrees with.
Amethyst and Steven walk over to Peridot after she has been tied up to a fence on leash. Amethyst is amused by Peridot's bizarre terminology for various body parts and objects. Peridot offers to get a drill head from the Kindergarten, but Garnet doesn't allow her to go until Steven and Amethyst volunteer as chaperones. At the Kindergarten, Peridot is confused that Amethyst would require permission from "the perma-fusion". She says that Amethyst is the most high-ranking of the Crystal Gems and should be in charge, but notes that she is "defective". She explains that as a Quartz, Amethyst should have been twice her size, but emerged smaller due to staying in the ground too long. This strongly upsets Amethyst, who uses her whip to cut off a drill head. When the three return to the barn, Peridot is unable to understand why Amethyst is in a bad mood, and Steven explains to her that she unintentionally made her feel bad about herself. When working on the drill, Peridot accidentally activates it. She tackles Amethyst to keep her out of the drill's path before it is disable. Later, while cleaning up, Peridot confronts Amethyst, begrudgingly explaining that she didn't mean to hurt her feeling and regrets it. Amethyst accepts the apology.
Amethyst walks in on Steven and Peridot, ready for a day trip to Funland. The three depart and arrive at the amusement park and decide to ride the roller coaster first. However, all three are rejected on account of being too short to ride. They retreat, with Amethyst saying "Shorty Squad, out." Once out of sight, Amethyst bemoans that they aren't tall enough, but realizes that they can simply use shapeshifting to make themselves taller. Steven and Amethyst both use shapeshifting to make themselves several feet taller, but Peridot is unable to. She tells them to just go without her, and the two ride the roller coaster while she looks up what a roller coaster feels like. When Steven and Amethyst get off, they all enter the house of mirrors. Amethyst and Steven have fun making their reflections change with shapeshifitng, but Peridot is not amused. When they leave, Peridot discovers a ring toss game and wants to play it to earn the prize, a classic stuffed green alien. The three play for the alien, but none of them land any rings. However, Amethyst distracts Mr. Smiley and makes her arm grow longer, gently setting a ring on a bottle. However, the prize is just a tiny alien, much to Peridot's dismay. Later, Amethyst asks Peridot what she thinks is wrong with shapeshifting, to which she confesses that she can't do it. Steven and Amethyst try to help her learn how to shapeshift, but it doesn't work. Peridot explains that she is incapable of shapeshifting due to being made during Era 2. Amethyst tries to explain that Peridot shouldn't define herself by what she can't do, but Peridot just uses her tablet instead of listening. Amethyst is annoyed by this and finally confiscates the tablet and throws it into the ocean. Peridot is horrified by this and flings her arms out, unintentionally making the tablet stop in midair. Steven realizes that Peridot has metal powers, something Peridot herself didn't even know until now. Amethyst is impressed, and Peridot later uses her newfound powers to move ten of the metal rings onto the bottles, thus earning the alien doll.
Garnet and Pearl have to leave for a mission to find Jasper, and ask Amethyst to hold things together while they're gone. Connie arrives for sword trying, which Pearl forgot about. Garnet and Pearl leave. Connie and Steven train together anyway, leaving Amethyst to stand on the sidelines, bored. Connie expresses distaste at her failure on her first Gem mission due to feeling like she didn't prepare enough, but Amethyst points out that it a real battle, you never know what's going to happen, so you can never truly be prepared. The three take a snack break and go to the Big Donut, where Amethyst shapeshifts into Lars to steal donuts (Steven and Connie pay for them). They spend the day having fun around town and end up at the ocean. They are then interrupted by a corrupted Quartz Gem emerging from the water onto the shore. Amethyst uses her whip to strangle the monster and succeeds in poofing it. Connie say that it was the same monster they fought up north, but recalls that there was a second one. Sure enough, the other corrupted Quartz bursts from the water, with Jasper riding it.
Amethyst assigns Steven and Connie to handle the snow monster while she takes on Jasper. However, Amethyst is badly beaten by Jasper, who berates her the whole time. Amethyst meekly defends herself, but Jasper brushes her comments aside and poofs her. Steven and Connie abandon their fight with the monster and rush towards Jasper, who picks up Amethyst's gemstone and prepares to crush it. As they are running towards her, they fuse into Stevonnie, who kicks the gemstone out of her hand and grabs it. Jasper is disgusted that "Rose" would fuse with a human and mounts the snow monster as Stevonnie mounts Lion. They charge at each other and Stevonnie pummels her helmet and poofs the snow monster. Amethyst reforms, ready to help, but stops when she realizes Stevonnie has poofed the monster and defeated Jasper without her help. Japser is furious at being beaten by another fusion, and retreats back into the water, swearing vengeance. Stevonnie unfuses, and Steven and Connie hug Amethyst when they realize she's reformed, also expressing excitement at their victory. Amethyst pretends to be happy for them, but feels bad realizing they didn't need her at all and they defeated Jasper while Amethyst herself failed.
Amethyst is till obsessed with having a rematch with Jasper, so to take her mind off things, Steven encourages her to take the day off. They visit Lapis and Peridot, and are surprised to find that the two have remodeled the barn and bonded with each other since they last saw them. Lapis and Peridot, show them their "meep morps", which Amethyst is disinterested in. They start playing music in hopes of impressing their guests, but stop when Amethyst yells that they are wasting time when they could be looking for Jasper. Peridot quietly says that she avoid using "the J-word" around Lapis, and Amethyst storms out. Peridot tries to make Amethyst feel better by telling her she's way better than Jasper and divulges that Jasper was also made on Earth, but in a different Kindergarten. She says that while Amethyst was made in the well put together Prime Kindergarten, Jasper was made in the inferior Beta Kindergarten, and invites her and Steven to see it with her. They all warp to the Beta Kindergarten, where Peridot explains that it was made in the middle of the rebellion when Homeworld was desperate to produce more soldiers, and as a result the final product was extremely rushed and produced many misshapen Gems. She points out several abnormally shaped exit holes, but Amethyst notices Jasper's hole, which is far superior to all the others. Upon further inspection, Peridot admits that it's the best hole she's ever seen, making Amethyst feel even worse. Steven assures her that she is defined not from where she came from, but who she wants to be. Unfortunately, Amethyst takes this the wrong way and declares that she wants to be the Gem who defeats Jasper. She notices a particularly odd hole that Peridot, looking at it, says isn't an exit hole at all. The search further and find other similarly dug-out hole, which turn out to be cages housing corrupted Gems. Peridot questions who would even do this, and then Amethyst notices Jasper lurking in a corner by one of the cages.
Peridot suggests going back to the temple to get reinforcements, but when Steven turns around he finds that Amethyst is gone. Amethyst is now trying to sneak up on Jasper, but Jasper suddenly acknowledges her presence. Amethyst announces she's hear to beat Jasper in a rematch. Steven runs up to try to prevent the confrontation and Jasper berates him and his "lackeys". Peridot reveals herself, announcing to Jasper that she has joined the Crystal Gems. Amethyst insists on fighting Jasper alone, but her hits have little effect on her and she is easily beaten down. After an injector falls to the ground, Amethyst bemoans to Steven that she can never beat Jasper due to seeing herself as inherently inferior for coming out too small. However, Steven compares Amethyst to himself, pointing out that neither of them are like anyone else, and pleads with Amethyst to stop leaving him behind. Amethyst is comforted by his words and hugs him tightly.
It is then that they accidentally fuse for the first time, forming Smoky Quartz. Smoky Quartz is more capable at battling Jasper, and ultimately ends up freeing the corrupted Gems. Jasper is furious at being beaten by another fusion, and forcibly fusing with a fleeing Quartz monster to form the Zebra Jasper. However, Smoky creates a tornado to combat the fusion. In the midst of it, the fusion falls apart and Jasper falls to the ground. While Smoky is busy congratulating themself, they notice Jasper has begun contracting corruption from the fusion, and falls apart in shock. Amethyst warns Steven to be careful as he goes over to try to heal her before she's too far gone. However, Jasper rejects Steven's help and yells at "Rose" for what "she" did to her and her Diamond. She finally succumbs completely to corruption, but is poofed after being impaled by Peridot. Amethyst tenderly bubbles the gemstone and sends it back to the temple. Steven walks over to her and she leans against him. Later, Amethyst (who is exhausted by the standoff), Steven, and Peridot head back to the barn and find the Rubies are back on Earth and are now being held in water bubbles by Lapis.
Lapis unbubbles the Rubies one by one to talk to them about why they came back to Earth. Army is the only one who divulges that they are back to find Jasper, not realizing that she is beyond help by now. Amethyst sneaks away from the group and shapeshifts into a purple to version of Jasper, tricking the Rubies into thinking she is the real thing. When Eyeball questions her about her hue, Amethyst claims its a tan she got from the sun, which the Rubies believe. They invite "Jasper" to come with them back to Homeworld, but Amethyst insists on staying, saying that she needs to keep the Crystal Gems hostage for the Diamonds. The Rubies are impressed at her apparent devotion, but they must go to the Moon Base to tell the Diamonds first. Amethyst, along with Steven, Garnet, and Pearl, enters the Roaming Eye with the Rubies, the latter three still posing as prisoners. Amethyst maintains the facade (and her form, with difficulty) all the way to the moon. When they exit, Eyeball asks "Jasper" to recount the tale of Pink Diamond's fate, but she claims to be too traumatized. Eyeball recalls the story herself, including how Rose Quartz ended the war by shattering her own Diamond. Steven is horrified by the revelation, insisting that his mother would never murder another Gem. Amethyst and the other Crystal Gems simply look at him with pity.
The Rubies discover that the communicator has been destroyed, so "Jasper" asks them to go back to Homeworld and file the report for her. They agree and board their ship again, and an exhausted Amethyst shapeshifts back to her natural form. However, they exit shortly after to offer Jasper a ride back to Earth. They see Amethyst in her default form and realize they've been tricked. Enraged, they fuse and try to fight the Crystal Gems, but Steven opens the door and the fusion is nearly sucked out. Garnet and Pearl form Sardonyx, and, with Amethyst on her shoulder, uses her hammer to knock the fusion out into space. The impact causes them to unfuse, and one of the Rubies grabs Steven and pulls him into space with her. Amethyst screams Steven's name as he flies out into space, completely exposed to the vacuum.
Amethyst, along with Garnet and Pearl, finds Steven floating out in space in his bubble. They bring him into the Roaming Eye, where the four have a tearful reunion.
Steven and Amethyst are eager to show Garnet and Pearl their fusion, Smoky Quartz. After whispering to each other their plan for introduction, they tell Garnet and Pearl that they want to introduce them to someone who helped them defeat Jasper. They then fuse into Smoky Quartz, shocking Garnet and Pearl. While Smoky is showing them their yo-yo tricks, they fuse into Sardonyx, who uses her hand to catch the yo-yo's. To help Smoky better demonstrate their fusion abilities, the two fusions move into Sardonyx's Room, which is structured like a talk show. Sardonyx interviews Smoky about themself with an imaginary audience, which Smoky struggles to answer due to only having been in existence for a total of about ten minutes. Sardonyx then makes Smoky try out activities other fusions like Opal and Sugilite excel at, but which Smoky fails at. Smoky then becomes deeply insecure, and reacts by making self-deprecating jokes towards themself, discomforting Sardonyx. She realizes that she has stolen what should have been Smoky's show and made the situation about herself. The remorse causes Sardonyx to split up, and her room begins collapsing without her presence. Garnet and Pearl are unable to reach each other, so Smoky Quartz uses their yo-yo as a grappling hook, grabs Garnet and Pearl, pulls themself out of the room, unfusing in the process. In spite of the rough landing, Garnet and Pearl are impressed with Steven and Amethyst, with Pearl even telling Amethyst that she's been a good influence on Steven. Amehtyst starts telling the story of how she and Steven fused for the first time back at the Beta Kindergarten.
Amethyst had shapeshifted into a ball and is bouncing around on the floor of the Beach House due to being excited that Greg is taking her to a rock show. However, she is dismayed to discover that Greg must cancel at the last minute. Pearl suggest Amethyst could hang out with her and Steven, to which Amethyst sarcastically responds that they could knit together. But Pearl insists that she could drive them to the rock show, shocking Steven and Amethyst, who insists Pearl should dress like a human. Later at the Big Donut, Amethyst is impressed by Pearl's bad-girl persona, and swallows a can whole while Pearl drinks some apple juice.
It is then that a mysterious pink-haired woman walks into the store, causing Pearl to spite out the juice. Amethyst encourages Pearl to talk to the girl, which results in her botching the interaction by dropping coffee cups. In the car, Amethyst laments the interaction, but Pearl insists they focus on the show. Steven says aloud that they might as well acknowledge that woman strongly resembled Rose Quartz, which Amethyst hadn't noticed until then. It is then that the girl drives up next to them on a motorcycle, and Amethyst advises Pearl on when to shoot her a look. However, a light in front of them turns red just as the girls drives past it, stopping the group. Pearl decides to embrace her wild side and drive through the red light, impressing Amethyst even after the cops start chasing them. Pearl eventually evades capture, but find that the car is out of gas, forcing the group to continue on foot. Pearl becomes frustrated that she was unable to impress Amethyst and Steven as she wanted to, but the two assure her that she was very cool tonight. It is then that they realize they have made it to the house where the show is, and see that the pink-haired woman is. Pearl decides to talk to her despite of Amethyst's protests. After coming back from the conversation, Pearl tells them everything that happened, ending with a slightly disappointing revelation that the woman walked away after giving her a piece of paper with some type of code. Amethyst, realizing that the "code" is actually a phone number, tells Pearl that she is a "total rock star". The credits for the episode list Amethyst as "Ultimate Wingman".
After warping back to the temple, Amethyst truthfully responds that she has no idea what the palanquin in Buddy Budwick's journal, but becomes suspicious when Garnet and Pearl refuse to tell Steven about it despite clearly knowing what it is. She appears stunned when Steven yells at Garnet and Pearl, as he rarely get angry at anyone.
After reaching the zoo, the Crystal Gems plan to infiltrate by playing the roles they were made for. Garnet unfuses and Amethyst shapeshifts into a full-size Quartz soldier, complete with a uniform. They all leave their ship and walk up to the two Amethysts guarding it. Holly Blue Agate appears and agrees to give Sapphire a tour of the zoo, but orders Amethyst to stay behind with the other guards at the door.
An Amethyst drops Steven and Greg into a room full of fierce-looking Quartzes, comprising mostly of Amethysts. Among them is Amethyst, now back in her default form, who has apparently been found out and is desperate. She starts to describe how terrifying the zoo Quartzes are, but at the last second says that they're actually great, revealing her apparent capture to be a hoax. Amethyst is revealed to have befriended the other Quartzes, who she says were also made on Earth. Their bonding is interrupted by Holly Blue marching in and ordering everyone out to prepare for Blue Diamond's arrival. Steven and Greg hide in the crowd of fleeing Quartzes as the leave the room. Once out, Amethyst tells them to run and that she'll catch up with them later. Later, Greg and Steven escape from the room full of bubbled Rose Quartzes and reunite with the Crystal Gems, Amethyst having rejoined them by now. They make their way back to the Roaming Eye with Holly Blue, Steven and Greg hiding and Amethyst concealing her true size. Unfortunately, Holly Blue catches them just as they are on the verge of escaping. She attempts to recapture the two humans, but is stopped by Garnet after Ruby and Sapphire refuse. The Crystal Gems attack her, with Amethyst using her spin attack to tangle Holly Blue in her own whip. Amethyst says goodbye to the "Famethysts" and the Roaming Eye begins its journey back to Earth.
Amethyst is seen looking dejected after Steven's abduction to Homeworld, but is thrilled upon realizing he has somehow made his way back to Earth.
Amethyst is dismayed to find out that Pearl has barely used her new phone despite having had it for a full months. She changes the wallpaper, using a picture of herself for it. She retreats to her room to find a phone case, and when she comes back she finds Pearl in shock after Steven asked her if she shattered Pink Diamond. Pearl loudly thanks Amethyst for the case and robotically retreats to her own room, confusing Amethyst. Later, Steven exists Pearl's Gem and sadly says aloud the revelation that his mother was Pink Diamond. Amethyst, standing nearby net to Garnet, responds with a loud "Whaaaaaaaaaaaat?"
Amethyst is still in disbelief that Rose Quartz was Pink Diamond, but jokes to Garnet that with Rose seemingly being obsessed with pink, she wouldn't be surprised if Rose has invented cotton candy. However, she becomes uneasy when Garnet doesn't respond, appearing stunned when she unfuses. In Pink's backstory, several of Amethyst's sister Quartzes wait several seconds for her to emerge but are told that she can catch up with them later, unaware that she will not emerge for several centuries.
When Steven meets with Pearl, she mentions that Amethyst and the others are still on Pink Diamond's ship. Later, she puts all of them into her gem and brings them out to Pink's room, where Steven is. Garnet, Amethyst, and Connie all embrace Steven upon seeing him again.
In Pink Diamond's room, Amethyst asks the Pebbles to make furniture that best simulates the design of the Beach House. When Steven is planning the party with the Pearls, Amethyst calls dibs on being the confetti cannon, but is shot down when Yellow Pearl says that cannons are forbidden. As Yellow Pearl continues to describe ball procedures, Amethyst remarks that it sounds pretty dry, and Yellow Pearl states that liquids are also forbidden. After Blue Diamond comes, she reluctantly allows the "faulty" Amethyst to attend the ball, as long as she wears limb enhancers, which irritates Amethyst. At the ball, Amethyst enters wearing limb enhancers similar to Peridot's. She jokingly calls Steven "my Diamond" and mentions that she finds the limb enhancers uncomfortable. However, she does have fun controling the fingers to do what she wants. She then leaves to mingle with other Quartzes.While dancing in place with the other Quartzes, Amethyst struggles to adjust to her limb enhancers and stumbles and falls. Steven and Connie descend from Pink's throne to dance together, they accidentally fuse into Stevonnie, startling everyone, including Amethyst. The Diamond demand that Stevonnie defuses, but Ruby and Sapphire also fuse and announce that they'll have to go through her first. Pearl reinforces the statement, and runs over to Amethyst and fuses with her, forming Opal. However, Garnet and Opal are immediately poofed by Yellow Diamond, who also shoves Stevonnie into a private isolated room to "think about what you've done."
|Gems||Rose Quartz • Pearl • Amethyst • Garnet • Peridot • Lapis Lazuli • Jasper|
|Humans||Greg Universe • Connie Maheswaran • Lars Barriga • Sadie Miller|