In the film, the Pentagon assigns a team comprising an FBI chemist and a former SAS captain with a team of SEALs to break into Alcatraz, where a rogue general and a rogue group of Marines have seized all the tourists on the island and have threatened to launch rockets filled with nerve gas upon San Francisco unless the U.S. government pays $100 million to the next-of-kin of 83 men who were killed on missions that the general led and that the Pentagon denied.
