When Ethan Hunt, the leader of a crack espionage team whose perilous operation has gone awry with no explanation, discovers that a mole has penetrated the CIA, he's surprised to learn that he's the prime suspect. To clear his name, Hunt now must ferret out the real double agent and, in the process, even the score.

With computer genius Luther Stickell at his side and a beautiful thief on his mind, agent Ethan Hunt races across Australia and Spain to stop a former IMF agent from unleashing a genetically engineered biological weapon called Chimera. This mission, should Hunt choose to accept it, plunges him into the center of an international crisis of terrifying magnitude.