While on a reconnaissance mission, Dinobot is captured by the Predacons. Instead of fighting them he announces that he wants to be a Predacon again. He is able to prove his loyalty by defeating Quickstrike, but when he has to kill Rattrap, he starts to reevaluate his allegiance.

Megatron gains control of the alien weapon, and plans to use it to conquer Cybertron. The Maximals are forced into an uneasy alliance with Tarantulas in order to stop him.