Peter Stiles along with his best friend Chloe are kidnapped by the ponies in Ponyville to be taken to their leader. While Chloe enjoys her stay, Peter discovers a secret behind the ponies that could destroy all of humanity.

Following the events of the My Little Pony Movie, the Storm King's Army is treated horribly for their crimes against Equestria. A member of the Royal Guard joins a rebellion for their freedom.