With a madly daring scheme to unleash a devastating chemical warfare on the unsuspecting citizens of San Francisco, the disillusioned war hero, General Francis X. Hummel, and a handful of loyal men take over the impregnable prison island of Alcatraz. Demanding $100 million in reparations to the families of his lost brothers-in-arms, the highly decorated military man threatens to launch deadly rockets filled with nerve gas, unless the Pentagon takes him seriously. Now, the fates of millions rest in the hands of two unlikely companions: the nervous FBI chemist, Stanley Goodspeed, and the experienced British ex-spy and former Alcatraz inmate, John Patrick Mason, who must break into the abandoned fortress to thwart the general's plans. Many tried to break out of this rugged and impervious jail; however, only one succeeded. Can Mason and Stanley escape from the Rock in one piece?