In the Nevada desert a 12-year-old boy gets swept up in a thrilling adventure when he stumbles across two giant robots battling in the dust. The boy and a new Autobot friend set off to secure a secret bunker before the Decepticons can find it. But the robot they left behind is a Decepticon in disguise, and he tells Bumblebee and the other Autobots that the boy and his friend are up to no good. Will the truth be revealed in time?