Ron's Gone Wrong is a computer-animated film set in a world where it's the norm to have B-Bots, digitally connected robot companions. Barney is a shy middle-schooler who is the last one in his city to finally get Ron, his B-Bot. Unfortunately, his "Best Friend Out of the Box" becomes a major pain, malfunctioning on a regular basis. Not knowing what else to do, Barney sets out to teach Ron about social cues and what it means to be a human.

Twenty-seven years after they defeated Pennywise, he has returned to terrorize the town of Derry once more. When kids start disappearing again, Mike, the only one who stayed in Derry, calls the others to come home. Each damaged by the experiences of the past, they must conquer their fears to destroy Pennywise once and for all.