As the Transformers begin their evacuation from Cybertron, little do the Autobots realise that the Decepticons have sinister plans concerning their Autobot 'allies'. Meanwhile, Shockwave and Starscream take off in the stolen Autobot spacecraft, the Ark, not realising they have a deadly stowaway onboard. However, for said stowaway, it looks like being an eventful trip. For the Neo-knights, they have an altogether different problem, a problem in the shape of Hi-Q, who for some reason thinks he's Optimus Prime!