John Wells has just barely managed to stop an operation designed to drive the United States and Iran into war, but the instigator himself disappeared behind an impenetrable wall of security. Now it's time for him to pay, and Wells has made it his personal mission. There are plenty of crosscurrents at work, though. The White House doesn't want anybody stirring the pot; his old CIA bosses have their own agendas; and other countries are starting to sniff around, sensing something unusual.

Evidence is mounting that someone high up in the CIA is doing the unthinkable - passing messages to ISIS, alerting them to planned operations. Finding out the mole's identity without alerting him, however, will be very hard, and to accomplish it Wells will have to do something he thought he'd left behind forever. He will have to reassume his former identity as an al Qaeda jihadi, get captured, and go undercover to befriend an ISIS prisoner in a secret Bulgarian prison.

When John Wells is called to Washington, he's sure it's to investigate the carnage in Dallas, but it isn't. The former CIA director, now president, Vinnie Duto has plenty of people working in Texas. He wants Wells to go to Colombia. An old asset there has information to share - and it will lead Wells to the deadliest mission of his life.

One morning, a former CIA agent is shot to death in the street. That night, an army vet is gunned down in his doorway. The next day, John Wells gets a phone call. Come to Langley. Now. The victims were part of an interrogation team that operated out of a secret base in Poland called the Midnight House, where they worked over the toughest jihadis, extracting information by any means necessary. Now Wells must find out who is killing them. Islamic terrorists are the likeliest suspects, and Wells is uniquely qualified to go undercover and find them.

For CIA operative John Wells, the underworld has become more real than the real world. He's spent years in the close company of evil men. And he's paid the price in every possible way. Now, he's on the ragged edge of burnout. His nights are plagued by twisted dreams. He's beginning to doubt if he can ever live a normal life.