Transformers: The Last Knight (Special Edition) Optimus Prime's search for its creator has taken an unexpected turn: Cybertron lies in ruins. There is only one way out to save his home and enable new life on his home planet: Among 100 trillion planets in the cosmos, a mysterious artifact from the past lies hidden on Earth of all places, which could save the robot species from final extinction. In a war between two irreconcilable worlds – man against machine – there can only be one survivor.