Plot: A youth chooses manhood. The week Sam Witwicky starts college, the Decepticons make trouble in Shanghai. A presidential envoy believes it's because the Autobots are around; he wants them gone. He's wrong: the Decepticons need access to Sam's mind to see some glyphs imprinted there that will lead them to a fragile object that, when inserted in an alien machine hidden in Egypt for centuries, will give them the power to blow out the sun. Sam, his girlfriend Mikaela Banes, and Sam's parents are in danger. Optimus Prime and Bumblebee are Sam's principal protectors. If one of them goes down, what becomes of Sam?
Alternative Plot: Two years after he and his Autobot friends saved the Earth from the Decepticons, Sam Witwicky (Shia LaBeouf) faces a new battle: college. Meanwhile, Optimus Prime and the Autobots are working with a secret military organization and trying to make a home for themselves on Earth. When an ancient Decepticon known as The Fallen rises up to wreak vengeance, Sam and his girlfriend, Mikaela, must figure out the history of the Transformers on Earth and find a way to defeat The Fallen once and for all.
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