Transformers: Generation 1: War and Peace

The Earthbound war between Optimus Prime and Megatron is abruptly halted by the arrival of new Transformers from Cybertron, who capture both factions and proclaim them enemies to the newly-united Cybertron! Now both Optimus and Megatron must pledge allegiance to this new order, or risk execution as war criminals. But not all is what it seems, and while Optimus Prime confronts his own past, Starscream is scheming from the shadows...