Ray Breslin (Sylvester Stallone), the world’s foremost authority on structural security, agrees to take on one last job: breaking out of an ultra-secret, high-tech facility called “The Tomb”. But when he is wrongly imprisoned, he must recruit fellow inmate Emil Rottmayer (Arnold Schwarzenegger) to help devise a daring, nearly impossible plan to escape from the most protected and fortified prison ever built.