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
G.I. Joe and the Transformers Joe/Transformers Vol. 1, as well as being included in the 8th and final volume of "Transformers Classics". The story had the G.I. Joe Team and the Autobots joining forces to stop the Decepticons and Cobra from destroying the world. The story featured Bumblebee being destroyed by G.I. Joe forces and rebuilt as Goldbug. The Joes, the Autobots, and Cobra (after being betrayed by the Decepticons) must join forces to stop the Decepticons from activating an energy drill device to suck up energy from the Earth's core, which would destroy the planet in the process. G.I. Joe and the Transformers G.I.