Transformers 5: The Last Knight is an American science fiction-action film directed by Michael Bay. In this fifth installment of the series, all Transformers, regardless of faction have been declared illegal. Optimus Prime finds his dead home planet, Cybertron and finds a way to bring it back to life. In order to do so, he needs to find an ancient artifact buried deep beneath Earth from centuries ago. Unfortunately, he is not the only one looking for it.