Based on the popular toys that transform into giant robots, this live-action Michael Bay megahit finds the planet Cybertron inhabitants engaging in a secret war for control of Earth's natural resources, which they desperately need for fuel. But much of the action centers on young Sam Witwicky (Shia LaBeouf), an unlikely hero whose first car turns out to be an Autobot and helps him win over his dream girl (Megan Fox).