When the father of the teenager Sam Witwicky gives an old Camaro to him, he has a chance to give a ride to his schoolmate Mikaela Banes and participate of an ancient war of robots on planet Earth. His car is actually the Autobot Bumblebee, leaded by Optimus Prime, and they are in war against the evil Deceptions, leaded by Megatron. Both races are seeking the cube Allspark with opposite intentions: the Autobots intend to protect the human beings, while the Deceptions want to destroy them.