Endgame, Part 2

The three Lugnut Supremes touch down on Earth and launch a full scale assault on Detroit. While Optimus Prime and Prowl fight the Lugnut Supremes and take one down, Ratchet, Bulkhead, Bumblebee, and Sari head to the moon to rescue Arcee and reactivate Omega Supreme; Starscream then takes over the remaining two Supreme clones and initiates their selfdestruction. Prowl begins to gather the Allspark fragments to block the explosion, including Starscream's fragment, killing Starscream for good. Failing to gather enough, Prowl sacrifices his Spark and makes an Allspark force field that surrounds the last selfdestructing Starscream Supreme. Megatron attacks one last time, but is defeated and arrested by Optimus. The Autobots have won, captured Megatron, Shockwave, and Lugnut, and returned to Cybertron with Prowl's body and several rescued protoforms that Master Yoketron (Prowl's Cyber-Ninja master) died protecting.