Dewey Andreas, still reeling from recent revelations about his own past, is ready to retire from the CIA. But he's the only available agent with the skills to carry out the CIA's plan to stop North Korea from launching a nuclear attack on the United States. The plan is to inject a singular designer poison into the head of the North Korean military and, in exchange for the nuclear plans, provide him with the one existing dose of the antidote. But it goes awry when Dewey manages to inject a small amount of the poison into himself. Now, to survive, Dewey must get into North Korea and access the antidote and, while there, thwart the nuclear ambitions of both North Korea and Iran. And he has less than 24 hours to do so.