Humans and Transformers are at war, Optimus Prime is gone. The key to saving our future lies buried in the secrets of the past, in the hidden history of Transformers on Earth. Saving our world falls upon the shoulders of an unlikely alliance: Cade Yeager; Bumblebee; and English Lord; and an Oxford Professor. There comes a moment in everyone’s life when we are called upon to make a difference. The hunted will become heroes. Heroes will become villains. Only one world will survive: theirs, or ours.