Autobots and Decepticons are at war, with humans on the sidelines. The key to saving our future lies buried in the secrets of the past, in the hidden history of Transformers on Earth. Optimus Prime finding his home planet, Cybertron, now a dead planet, which he comes to find he was responsible for killing. He finds a way to bring the planet back to life, but in order to do so he needs to find an artifact, and that artifact is on Earth. Directed by Michael Bay.
