Stationed on Earth to protect against the constant Decepticon threat, Optimus Prime and his Autobots have done their best to remain hidden. But when an unexpected clash at a Decepticon Energon mining site separated Cliffjumper from his teammates, the Autobots learned the stakes may be higher than they thought. Now back on Earth and infused with the mysterious powers of Dark Energon, Megatron's plans of revenge are put into action, plans that land all the Autobots and their new new Earth-friends, Jack, Miko, and Raf, right in his crosshairs.

"Adapted from the all-new animated series!"