While investigating an alien planet, Hellbat comes across the Dorya insects, ravenous alien bugs that aggressively attack Transformers. After breeding more of them, the Decepticons lure Star Saber into a trap and unleash the swarm on him, eager to finish off their foe once and for all. The other Autobots, receiving no word from their commander, swiftly mobilize to find out what has become of him, and soon find him at the mercy of their foes...