Season 1

"Season 1" is the first season of Steven Universe, and has a total of 52 episodes. Three episodes from this season ("Open Book", "Story for Steven" and "Shirt Club") were moved to season 2.

Season 1 originally ran from November 4th, 2013 to March 12th, 2015, with a winter hiatus between December 2nd, 2013 and January 13th, 2014, a summer hiatus between May 14th and August 21st, 2014, and a winter hiatus between December 4th, 2014 and January 8th, 2015. The last 5 episodes premiered from March 9th to March 12th as part of StevenBomb. The three rescheduled episodes aired in March and April of 2015, with the last one airing on April 16th, completing the season's run of 52 episodes.

Summary
The first season of Steven Universe mainly focuses around Steven learning about being a Crystal Gem along with the history of the Crystal Gems. Throughout the first part of this season, Steven mainly hangs around Beach City. In episode 1, "Gem Glow", Steven's gem glows for the first time along with his ability to summon his weapon. On his first mission in the series outside of Beach City, the Gems test him at the Lunar Sea Spire. He learns how to partially shape shift in "Cat Fingers", but never tried afterwards, and met Connie in "Bubble Buddies". He then finds a pink lion in "Steven's Lion", whom he keeps as a pet. In "Giant Woman", Steven learns about fusing for the first time.

He discovers the ability to change his age in "So Many Birthdays" and more about his mom, Rose Quartz, in "Lars and the Cool Kids". Pearl "shows" Steven how Gems recover from wounds in "Steven the Sword Fighter" after being damaged by her hologram counterpart. He manages to activate the door to Rose's Room and recreate Beach City in the episode "Rose's Room". He meets a second fusion and learns what true strength is in "Coach Steven". In "Mirror Gem" and "Ocean Gem", Steven releases the first non-Crystal Gem, Lapis Lazuli, from a mirror and heals her gem so she can go home.

He learns about the Gems interstellar empire in "Space Race". He helps a friend see the truth in "Keep Beach City Weird". He discovers the ability to create life from plants "Watermelon Steven" and learns more about his mother in "Lion 3: Straight to Video". In "Warp Tour", he sees a Homeworld Gem warp to Earth much to the dismay and panic of the Crystal Gems. In "Alone Together" Steven fuses with his friend Connie and forms Stevonnie. In "Future Vision", Steven learns about Garnet's foresight. In "On the Run", he learns about Amethyst's past and the Homeworld's intentions. In "Horror Club”, Steven learns of past relations between Ronaldo and Lars. In "Winter Forecast", Steven temporarily gets future vision from Garnet. In "Maximum Capacity", Greg and Amethyst start bonding, by watching their favorite show, Li'l Butler. In "Marble Madness", more of Peridot's robots come to Earth.

In "Open Book", Steven and Connie want a new ending to a beloved book series they have recently read so Steven takes them into Rose’s Room to re-enact it. In "Story for Steven", Greg tells Steven the story of how he met Rose Quartz. In "Shirt Club", Steven and Buck Dewey make t-shirts together. In "Rose's Scabbard", Steven helps Pearl cope with her loss of Rose. In "The Message", Lapis Lazuli warns the Gems of a Gem returning to Earth. In "Political Power", the Crystal Gems begin preparing for Peridot's return to Earth. In "The Return", the Crystal Gems are abducted by Jasper and Peridot. In "Jail Break", Steven finds out Garnet is a fusion of Ruby and Sapphire. The Crystal Gems later break free, destroying the ship, and leaving behind debris around the beach of Beach City ending the first season of Steven Universe.

Trivia

 * Amazon Instant Video lists Season 1A as "Season 1" and Season 1B as "Season 2".
 * In response to a question from a fan, Ian Jones-Quartey joked that the seasons are also divided into shapes and that episodes 1-26 is season octagon, episodes 27-47 are season parallelogram http://ianjq.tumblr.com/post/115370267504/would-it-be-reasonable-to-assume-that-season-2-is
 * On July 12th, 2015, Ian Jones-Quartey posted a complete list of the original intended airing order for season 1. http://ianjq.tumblr.com/post/123939657564/now-that-all-the-season-1-episodes-are-out-could