Nicolas Cage stars as Stanley Goodspeed, an FBI chemical weapons expert handed a unique assignment. Francis X. Hummel (Ed Harris), an insane Marine Corps general, has taken 81 tourists hostage on the abandoned island prison of Alcatraz. He and his men are threatening to bomb San Francisco with deadly gas unless $100 million is paid in war reparations to the families of servicemen killed in covert operations. Goodspeed is teamed with former British spy John Patrick Mason (Sean Connery), the only man ever to escape "The Rock," as well as a Navy SEAL team. When their military escorts are ambushed, it's up to odd couple Goodspeed and Mason to break into Alcatraz and stop Hummel.