1982 (GW)

In 1982, Joe science teams uncovered an alien spacecraft and studied it, which gave them a huge technological edge. They use this edge to enforce their will across the world. Discovering ancient alien robots in the Ark, the Joes did they best they could with limited technology to bring them back to life. A few were repaired and given new Joe vehicle altmodes. However, not all of the bots repaired were Autobots, and many of the Decepticons immediately left the Joes to seek their fortunes elsewhere. One of them, called Megatron, gathered some of the others and built an undersea base, far away from prying human eyes...