Banished from the Autobot Base on multiple counts of breaking protocol, Sentinel Prime finds himself in the Great Lake State of Michigan where he encounters a seemingly normal teenaged girl by the name of Sari Sumdac and a Decepticon assassin with an important task at hand.
A few days after the encounter, Ironhide, Sideswipe, and Chromia are sent out to the Motor City of Detroit to help Sentinel learn to the basics of combat, discipline, and leadership.
Together, Sentinel Prime, Ironhide, Sideswipe, Chromia, Grimlock, and Sari Sumdac defend Michigan from the ever growing threat of the Decepticons.
After Sam's show and tell presentation of his great grandfather's items, he and his younger brother Michael had their first cars. Little did they know that the cars are robots from another planet. It will be a big journey for them.