Optimus Prime, Bumblebee, and the rest of the Autobots must prevent the sinister Megatron from using a substance called Dark Energon to resurrect fallen Decepticons in order to create an undead army. From the writing team behind the megablockbuster Transformers feature films, comes an all-new series of stunning, computer-animated adventures for the Autobots, Decepticons and their human allies.