Vector Sigma - Generation 1

Generation 1

In the Earth year 1985, in an attempt to contest the Autobots' control of the roads, Megatron constructed a new group of car Transformers dubbed the Stunticons, who he then brought to Cybertron in order to bestow life upon them. Stealing the key to Vector Sigma from Alpha Trion, he succeeded in reactivating the computer and giving his creations sentience. The Autobots then followed suit with the creation of the Aerialbots, and Alpha Trion gave up his own life to reactivate Vector Sigma so that they might be given life. Subsequently, Megatron discovered the additional properties of the key, and began to transform Earth into a new Cybertron, only to be stopped by the Aerialbots, and the key destroyed.

Vector Sigma was not revisited in the American series until the fourth and final season of the show, consisting of a three-part story entitled The Rebirth. Vector Sigma allowed Galvatron to become aware of the existence of the key to the Plasma Energy Chamber, the theft of which set in motion a chain of events that would restore Cybertron's Golden Age. Using the shell of the Matrix (its energies having been previously spent to cure the Hate Plague), Optimus Prime reactivated Vector Sigma, and conversed with Alpha Trion within the machine, learning of the computer's plans. Then, when the energy of the Plasma Energy Chamber threatened to overload Earth's sun, Spike Witwicky was able to redirect the excess solar energy into Vector Sigma, revitalizing the entire planet.