Out now on digital and hitting DVD, 4K Ultra HD and Blu-ray from 20th August is the brilliant Rampage, the summer monster blockbuster starring Dwayne Johnson. I loved this movie when it played in cinemas earlier this year and am so pleased that I have his exclusive behind the scenes featurette to share.

In 1993, a breakthrough new technology gave scientists a path to treat incurable diseases through genetic editing. In 2016, due to its potential for misuse, the U.S. Intelligence Community designated genetic editing a “Weapon of Mass Destruction and Proliferation.”

Johnson stars as primatologist Davis Okoye, a man who keeps people at a distance but shares an unshakable bond with George, the extraordinarily intelligent, incredibly rare albino silverback gorilla who has been in his care since he rescued the young orphan from poachers. But a rogue genetic experiment gone awry mutates this gentle ape into a raging creature of enormous size.

Related: Rampage movie review

To make matters worse, it’s soon discovered there are other similarly altered animals. As these newly created super creatures tear across North America, destroying everything in their path, Okoye teams with discredited geneticist Kate Caldwell (Naomie Harris) to secure an antidote, fighting his way through an ever-changing battlefield, not only to halt a global catastrophe but to save the fearsome creature that was once his friend.

Watch our exclusive featurette below.

Rampage is available now digitally and on DVD, 4K Ultra HD & Blu-Ray on 20th August.