Optimus Prime returns in "". He leads the Autobots as part of NEST in hunting down the remaining Decepticons on Earth. He later engages in a battle with Starscream, Grindor, and a resurrected Megatron. Although Optimus manages to injure Starscream and kill Grindor, he is eventually impaled and killed by Megatron. However, Optimus is resurrected during the battle in Egypt by Sam using the Matrix of Leadership. He is then fused with the dead body of Jetfire, giving him an extremely powerful upgraded mode. After severely maiming Megatron, he kills The Fallen, forcing Megatron and Starscream to retreat. At the end of the film, Optimus thanks Sam for reviving him and again transmits a message to space, hoping to find more Autobots.