Decepticons

The Decepticons' role in the original television series begins four million years ago on the Transformers' home planet of Cybertron[?]. Ravaged from the war between the Autobots[?] and the Decepticons, Cybertron was almost completely drained of its energy resources. Neither side had enough energy reserves to continue the battle, which led to a stalemate. The Autobots, with their leader Optimus Prime, leave their home planet to seek new sources of energy. The Decepticons pursued them and boarded the Autobot starship (the Ark). During the ensuing fight they crash-landed into a volcano on prehistoric Earth. Awakened in 1984 when when the volcano erupts, the Decepticons are repaired by the ship's computer and flee, leaving the still-deactivated Autobots behind. Megatron soon discovers that Earth has nearly limitless energy resources. Hoping to tip the war's balance in favor of the Decepticons, Megatron plans to transfer Earth's energy to Cybertron even if it means ruining the Earth in the process.

Unfortunately, the Decepticons made a fatal mistake by leaving the Autobots behind. Just after the Decepticons were awakened, the Autobots were still deactivated and among them on the Ark. In a twist of fate, the Decepticons failed to terminate them when they had the chance. Upon fleeing, the Decepticons blasted the rocks around the ship to seal the entrance. The jolt moves an Autobot into the Ark's repair beam. All the Autobots are subsequently revived and rise up to become the protectors of life on Earth and the Decepticons' nemesis.