Extreme athlete turned government operative Xander Cage comes out of self-imposed exile on a collision course with deadly alpha warrior Xiang and his team in a race to recover a sinister and seemingly unstoppable weapon known as Pandora's Box.
Humans and Transformers are at war, Optimus Prime is gone. The key to saving humanity's future lies buried in the secrets of the past, in the hidden history of Transformers on Earth.
