The dispatch team of Rubies return to the barn still searching for Jasper. To try and get them to go away, Amethyst shapeshifts into her. However, things get awry when the Rubies want her to contact Yellow Diamond at the Moon Base, with Steven, Garnet and Pearl as her "prisoners".
Steven Universe is a coming-of-age story told from the perspective of Steven, a chubby and happy-go-lucky boy and the youngest member of an intergalactic/ethereal team of warriors called the Crystal Gems.
Steven Universe - Back to the Moon Synopsis and Schedule