Cybertron has fallen. When Optimus Prime sends a transformer to defend Earth, his journey to become a hero begins. Charlie Watson, a teenager trying to find her place in the world, discovers and repairs the battle-scarred robot, who's disguised as a Volkswagen Beetle. As the Decepticons hunt down the surviving Autobots with the help of a secret agency led by Agent Burns, the transformer and Charlie team up to protect the world in an action-packed adventure that's fun for the whole family.