Realizing that the planet is dying, Optimus orders a mass evacuation of all Autobot cities, but many transport ships are destroyed by the Decepticon satellite , under orders from Megatron that no one shall leave the planet. He orders the Aerialbots , and to fly and destroy Trypticon. The aerial trio manages to destroy Trypticon's jet pack and send the Decepticon behemoth crashing into Cybertron, where Optimus Prime and the Autobots band together to narrowly defeat him, sending him plunging into a pool of raw energon. Optimus and the remaining Autobots volunteer to stay and defend Cybertron from Megatron for as long as possible while the rest evacuate the planet. He commissions a massive vessel known as the "Ark" to transport the remaining Autobots into space when the time comes.