Witwicky, the gifted kid that helped the "good robots" save planet Earth from total annihilation, is trying to have a normal life by attending college like the regular boys and girls. However, the Deceptions are still at it and are coming after the symbols that are hidden in his mind. The war is far from being over, and Sam is dragged back into the action, along with his lovely girlfriend and eccentric parents. Megatron wants to destroy the sun, and Sam's mind holds the key to an ancient machine hidden in the middle of an Egyptian desert. The stakes are higher than ever, and there's no room for error. Will Sam save the world for the second time?