Transformers: Generation 1 - Fire on the Mountain - S01 E15 - 1984

Fire on the Mountain | Transformers Generation 1 | Season 1 | E15 |

There is a crystal of massive power out there. Both sides become aware of it and the Decepticons reach it first. It can power a weapon destructive enough to eliminate the Autobots and decide the fate of Earth once and for all. Only Windcharger, Brawn and Skyfire are in range to stop them before it's too late.