The assembled Autobots take center stage as the mystery surrounding the Decepticons' sudden–and demonstrative–change of modus operandi deepens. Can Ratchet convince Prowl that drastic action needs to taken now, not later, action that involves a certain Optimus Prime? If not, well, it may be that Ratchet has to take some (more!) drastic action of his own. As for the Decepticons, they're already braced for a response, Autobot or otherwise, and the first order of business... is to wipe out all remaining evidence!