"Transformers" (2007) is a motion picture about the heroic Autobots fighting the evil Decepticons to recover the Allspark, a device of great power, that was lost from their home planet Cybertron. They find that the Allspark has landed on the planet Earth, and they both go to recover it. Sam Witwhicky (Shia LaBeouf), upon buying his first car, learns that his car is actually the Autobot Bumblebee (Mark Ryan) masquerading as a common vehicle. Bumblebee becomes his guardian, but as more and more Decepticons begin to launch attacks on Earth, the other Autobots intervene in order to protect the location of the Allspark for the leader of the Decepticons, Megatron (Hugo Weaving). Sam Witwhicky and his girlfriend Mikaela Banes (Megan Fox) must help Optimus Prime (Peter Cullen) and the Autobots save Earth from the tyranny of Megatron.