Transformers: War for Cybertron unfolds on the planet Cybertron, where the Autobots and Decepticons face off in a climactic battle. It tells of the interstellar war between Optimus Prime and Megatron as they fight for the AllSpark. Epic scenes depict Cybertron's energy crisis, the Ark's escape aboard a spaceship, and a pursuit across time and space. Mechanical transformations and multiple storylines combine to reveal the grandeur and tragedy of the Transformers universe.