Six years after the decisive battle against
Unicron, a group of rebellious Headmasters led by
Weirdwolf join with
Galvatron's
Decepticons in an attack on Cybertron. The 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, is destabilizing, and
Optimus Prime again sacrifices his life to save Cybertron. This proves to be only delaying the inevitable, however, as 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 vanished in the explosion- as Decepticon leader, constructing a personal Transtector and redubbing himself MegaZarak to battle Cerebros' own giant form, Fortress Maximus. Although populated mainly with new characters,
The Headmasters featured characters from all previous seasons, including new versions of
Soundwave and Blaster, rebuilt after a duel destroyed them both as Soundblaster and Twincast. Human
Daniel Witwicky and his young Autobot friend
Wheelie also played major roles in the series, serving as the youthful characters for the audience to identify with. More new characters were introduced when Galvatron returned to leadership and the Decepticons embarked on a space voyage, ransacking planets in a chain of stories that introduced the
Horrorcons, Autobot and Decepticon clones. Later, the Decepticon ninja six-changer
Sixshot kills Ultra Magnus, and the Autobot Headmasters manage to destroy Galvatron, leaving Scorponok to become leader of the Decepticons again. When the Decepticons then return to Master, refugees from the planet are caught in a plasma bomb accident that fuses them to the arms of several Autobots and Decepticons, creating the Targetmasters, and in a final move, Scorponok attempts the destruction of Earth, only to be foiled, thanks in part to a traitorous Sixshot. ==Adaptations==