After the Decepticons discover energon on a distant planet, Optimus Prime and the Autobots arrive in Ponyville, quickly attracting the crown's attention. Now it is up to the Autobots and their newfound friends to protect Equestria from the Decepticons. However, as they continue their battle, Optimus and the others discover the bonds between their worlds run deeper than either believed. Can the Autobots and their newfound companions end their centuries long conflict and spare Equestria from the violence that destroyed Cybertron?
(TFP/FIM takes place after season 5. Edited recently)
(Transformers is copyright hasbro. MLP is copyright hasbro and Lauren Faust.)