Dog Soldiers

A couple goes camping in the Scottish Highlands. The woman gives the man a silver letter opener as a present; shortly afterward they are killed in their tent by unseen assailants. Meanwhile, a soldier named Private Cooper runs through a forest in North Wales. He attacks his pursuers, but is overwhelmed and wrestled to the ground. It is revealed that Private Cooper is trying to join a special forces unit but fails when he refuses to shoot a dog in cold blood. He is returned to his unit by Captain Richard Ryan.