Transformers: The Headmasters bot Headmasters, led by Cerebros return to their home planet to aid in its defense. The situation soon gets worse when it is revealed that Vector Sigma, the super-computer at the planet's heart, was destabilizing, and Optimus Prime again sacrifices his life to save Cybertron. This soon proves to be only delaying the inevitable, however, when a bomb attack instigated by Scorponok turns Cybertron into a burnt-out, inhospitable husk. Rodimus Prime departs to search for a new planet for the Transformers to live on, leaving Cerebros in command, operating from the planet Athenia. Meanwhile, Scorponok replaces Galvatron - who had
Transformers: Dark of the Moon blow your mind." Unlike the two previous "Transformers" installments, which were based solely on the script writers' endemic story, "Transformers: Dark of the Moon" was based on a novel called "", written by Alan Dean Foster. The novel is a prequel to the 2007 film "Transformers". It follows the same story structure as "Dark of the Moon", being set in 1969, the year of Apollo 11. The story structure differs slightly, though, because the novel was written merely as prequel to the first film. Due to the critically panned "Transformers: Revenge of the Fallen", Bay decided to remove the characters