Jack, a samurai warrior from hundreds of years ago, was flung into the future by his enemy Aku. Now landing in New York, Jack fights his way to try to get back to his own time, while getting stronger himself. Along the way, he stumbles upon the ruins of TCRI, where he discovers a mutated alligator named Leatherhead. Leatherhead decides to come with Jack for the time being, but they come across Blitzwing, who foretells of the arrival of the Decepticons. Thinking that defeating Blitzwing will stop the Decepticons from arriving, Jack and Leatherhead decide to fight this robot to make things right.
