When General Francis X. Hummel, driven by revenge, takes over Alcatraz Island, he poses a grave threat to San Francisco by threatening to launch missiles filled with lethal chemical weapons. As panic spreads, hope rests on the unlikely duo of a young FBI chemical weapons expert and a notorious federal prisoner. Together, they possess the unique skills needed to infiltrate the heavily fortified island and confront Hummel before it’s too late. Time is running out, and the stakes couldn’t be higher as they embark on a perilous mission to thwart a catastrophic attack on the city.