Movie Overview Transformers 2007 Bluray HD Full Movie Free Download Several thousand years ago, the planet Cybertron was consumed by a civil war by the two Transformer factions, the Autobots led by Optimus Prime and the Decepticons led by Megatron. Optimus jettisoned the AllSpark, a mystical artifact that brings life to the planet, into space, but Megatron pursued it. Megatron crashed in the Arctic Circle and froze, and was discovered in 1895 by explorer Archibald Witwicky.