The assembled Autobots take center stage as the mystery surrounding the Decepticons' suddenâ€“and demonstrativeâ€“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!