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
The Transformers: Hearts of Steel The Transformers: Hearts of Steel The Transformers: Hearts of Steel is a comic book miniseries published by IDW Publishing. It was intended to be part of a comic book line titled "The Transformers: Evolutions", following the same idea of DC Comics' "Elseworlds" series. Each series was to create an alternative reality: a continuity in a different time era during which the Transformers would exist. In other words, the Transformers can exist at places and at points in time that would not be possible in the current 'IDW-verse'. As of 2007, only the "Hearts of Steel" series was produced, which is