Transformers 2: Bại binh phục hận

Transformers 2: Bại binh phục hận: Obtaining a secret map, the Decepticons retu to Earth to capture Sam Witwicky, who has inadvertently discovered the ancient history of the Transformers. In order to protect humanity, Optimus Prime forms an inteational military alliance to prepare for the second fierce battle against the Decepticons.