Optimus Prime sends an Autobot shuttle to Earth’s Autobot City for Energon supplies, but the Decepticons, led by Megatron, commandeer the ship and kill the crew, consisting of Ironhide, Ratchet, Prowl and Brawn. Travelling to Earth, the Decepticons attack Autobot City, slaughtering many Autobots and leaving only a small group alive including Hot Rod, Kup, Ultra Magnus, Arcee, Springer, Blurr, Perceptor, Blaster, and the human Daniel Witwicky.