Rodimus leads a dysfunctional group of Autobots on the starship Lost Light, in search of the legendary Knights of Cybertron. When a powerful Decepticon called Overlord escapes his secret prison in the bowels of the ship and carves a bloody path through the crew, fatally wounding Ultra Magnus, it's left to Chromedome, Fortress Maximus, and Rewind to put an end to his rampage. Overlord is forced back into his cell, which is then jettisoned from the ship-with Rewind trapped inside. Chromedome blows up the cell rather than leave Rewind to the Decepticon's mercies.