Ultra Magnus was first introduced — and, debatably, first "constructed" — in the Earth year 1986, as the underground Autobot resistance on Cybertron prepared to execute their daring "Operation: Volcano" plan, which would involve luring the Decepticons' crack troops to one location where Magnus and the Autobot commando squad, the Wreckers, would finish them off. However, when the Matrix Flame (a flame denoting the activity of the robot containing the Creation Matrix) suddenly extinguished, Magnus was dispatched to Earth to discover what had happened to Optimus Prime.