The Rock (1996)
When vengeful General Francis X. Hummel seizes control of Alcatraz Island and threatens to launch missiles loaded with deadly chemical weapons into San Francisco, only a young FBI chemical weapons expert and notorious Federal prisoner have the skills to penetrate the impregnable island fortress and take him down. war veteran, san francisco, california, fbi, mercenary, gas attack, alcatraz prison, prison escape, shootout, u.s. navy seal, terrorism, british spy, chemist, commando, hostage situation, tourist attraction, u.s. marine, military, island prison, tourists in peril, nerve gas, disillusioned, terrorist threat, chemical weapon, fbi agent, chemical warfare, ambivalent