After unknowingly purchasing a red bike that turns out to be the Autobot warrior Arcee, Josie is thrown into the middle of the growing war between Autobots and Decepticons during the events of Transformers: Revenge of the Fallen. Now hunted by Decepticons and pulled into the chaos surrounding Sam Witwicky, Mikaela Banes, and the Autobots, Josie must survive a conflict far larger than humanity was ever meant to understand. But the deeper her bond with Arcee grows, the more dangerous she becomes to both sides of the war.