"Say Uncle" is the title of a future episode of Steven Universe. The episode was announced at Cartoon Network's Upfront Slate for 2015-2015.[1] It is a crossover between Steven Universe and Uncle Grandpa, another series made by Cartoon Network.
Synopsis
A long-lost relative of Steven's comes to town to aid him in unlocking the power of his mother's gem!
Characters
- Steven Universe
- Uncle Grandpa
Trivia
- This is the first Steven Universe crossover