Transformers stars Shia LaBeouf as Sam Witwicky, a teenager who gets caught up in a war between the heroic Autobots and the villainous Decepticons, two factions of alien robots who can disguise themselves by transforming into everyday machinery, primarily vehicles. The Autobots intend to use the AllSpark, the object that created their robotic race, in an attempt to rebuild Cybertron and end the war while the Decepticons desire control of the AllSpark with the intention of using it to build an army by giving life to the machines of Earth..