While working undercover as a bodyguard to arms dealer Harry, former-soldier-turned-secret-service-agent Ewan survives a bloody shootout with balaclava-clad Ash, a member of an Islamic terrorist cell who steals Harry's briefcase full of Semtex explosives and escapes with a minor injury. Ewan's spymasters, Charlotte McQueen and her boss, Scott Catesby, inform Ewan that he must hunt down the cell members and retrieve the briefcase.