Megatron Rising, Part 1

When Starscream, Blitzwing, and Lugnut begin their attack upon Earth, Optimus Prime demands that Sari hand over her key to the Autobots. She refuses and Rachet uses his magnets to forcefully take it from her. Upset, Sari runs away and is captured by Blackarachnia. Optimus begins to doubt his leadership while Megatron begins his next stage to have his body rebuilt. Lugnut and Blitzwing steal the key from the Autobots. Starscream, when scanning Lugnut, learns at last that Megatron is really alive. After thinking a little, he decides to join up with his former leader until the next good opportunity to get rid of Megatron presents itself. Starscream arrives at Sumdac's lab, where Megatron's head is kept, and tries to convince him of his loyalty, not suspecting that Megatron already knows about his treachery. Later, Optimus watches in horror as Megatron rises to the sky, his body having been fully rebuilt by Isaac Sumdac and the Allspark key.