Sequel to the 2007 mega-budget live action sci-fi film based on the 1980s cartoon series. Shia LaBeouf reprises his role as Sam Witwicky, the young earthling caught in the raging war between the Autobots and the Decepticons. After he glimpses the truth about the ancient origins of the Transformers through a powerful vision sent to him by the Allspark, Sam once again finds himself the target of the evil Decepticons, who have returned to Earth under the command of the formidable Starscream (voiced by Charles Adler). Joining the Autobots' mission to protect humankind is Optimus Prime (Peter Cullen), who forms an alliance with international armies for this second epic battle.