When the world's best spy is turned into a pigeon, he must rely on his nerdy tech officer to save the world.
Years after the events of Predacons Rising, Bumblebee is summoned back to Earth to battle several of Cybertron's most wanted Decepticons that escaped from a crashed prison ship and assembles a team of young Autobots that includes Sideswipe (a rebel "bad boy bot"), Strongarm (an Elite Guard cadet), Grimlock (a bombastic Dinobot), and Fixit (a hyperactive Mini-Con with faulty wiring).
Set in the Japanese occupation era, the rich yet naive young master Ming Tai is trained to become an agent, and is later sent to become an underground spy for the Communists. Together with his brother and double agent Ming Lou, they try and bring down Wang Wei's Kuomintang Secret Service Headquarters.
An evil race of transforming robots known as the Destronger make their appearance known by invading a world exposition in New York and abducting Professor Onishi, a renowned scientist. The professor's son Yuuki befriends Fire Convoy and the heroic Cybertron forces, who will stop at nothing to rescue the professor and protect Earth from the wrath of Gigatron and his Destronger henchmen.