The stars of "The Expendables 2" include Sylvester Stallone (from left), Jason Statham and Terry Crews. | Lionsgate/Millennium Films photo
John T. Booker (Chuck Norris) is a retired military operative on a mission to save his old teammates in "The Expendables 2." | Lionsgate/Millennium Films photo
Yu Nan (from left), Terry Crews, Sylvester Stallone, Randy Couture and Dolph Lundgren star in "The Expendables 2." | Lionsgate/Millennium Films photo
Jean-Claude Van Damme stars in "The Expendables 2," which hits the big screen on Aug. 17. | Lionsgate/Millennium Films photo
Capping off the summer box office with explosive action, “The Expendables 2” offers the send-off that adrenaline junkies are seeking before the more sedate pace of fall releases. As he proved with the original installment, Sylvester Stallone grasps the action-oriented DNA of the films’ cast …