The inmates have taken Alcatraz. Deciding that a quiet escape through hidden passages is too tame, the prisoners stage a full frontal assault on the guards and seize control of the facility. Some break out into the world beyond the walls; others stay behind to defend their new lawless home. On the outside, a criminal network operates without morality or restraint, chasing profit above all else — while a handful of officers hold firm, refusing every bribe that comes their way.