When a double agent in Cuba suddenly disappears, there is concern that he might have gone rogue, working against ROOM 59 and the world at large. But one of the agency's top spymasters has a blood tie to the operative in question, which leaves him with an agonizing choice: allow the mission to be scrubbed, and leave thousands to die in the resulting bloodbath―or risk everything he knows, including his career, to keep his secret deeply buried.