Flash-forward to a pre-transformers era, the story weaves about Orion Pax (later Optimus Prime) and D-16 (who’s another name apparently Megatron) operate as miners in a tyrannical caste-like society before that-of Transformer-tech. The two who travel to get the Matrix of Leadership in order to fix Energon with rekindling a world, only for them to learn that they have been confronted by leadership and society which diverge them greatly.