Long exposure to the radiation of Dark Energon has changed Dead End. The formerly talkative Decepticon mercenary now broods quietly in the shadows, staring hungrily at the power cores of his fellow warriors. He's always freaked out the Autobots, but now even his friends think he's scary. And that's because he is. Dark Energon has unpredictable effects on anyone it touches. With Dead End, that has resulted in him feeling a hunger that normal fuel does not satisfy, and an attraction to the darkest places in the Decepticon base.