In 1999, a group of amnesiac children live in the episodic world of It's Buddy!, a children's television show hosted by the tyrannical Buddy, a bright orange, humanoid unicorn with a purple heart on his chest who lives in his wacky clubhouse. When the children begin to defy their captor after one of the kids disappears, Buddy grinds his teeth and sends them on a perilous journey to the mythical Diamond City. Meanwhile, in the real world, traumatized suburban mother Grace is drawn into Buddy's abomination. Will the group of children along with their new companions help them reach the mythical Diamond City, or will Buddy have his way and replace the group of kids with a new group?