Synopsis:
Buster opts to say goodbye to the Autobots, and tells Sparkplug. Meanwhile, back at the Ark, Shockwave reveals his plan to Megatron - to get the Creation Matrix from Optimus Prime and build an army of Decepticons. Ratchet and Buster return to the Ark, and find it full of Decepticons. Buster sneaks in, and finds the Autobots deactivated and strung up, and Prime's head placed in a holding apparatus, telling him he is the Autobots' last hope.
