November 22, 1963. President John F. Kennedy is shot in Dallas. Through a twist of fate, he survives. Political intrigue and infighting roils Washington in the wake of the assassination attempt, and a wounded President John F. Kennedy faces a growing crisis in Vietnam that threatens America’s Cold War strategy. The president doesn’t trust the information he is getting from Saigon, where the military is engaged in a shadow operation to make things seem better than they really are. So he turns to the one man he does trust: Lt. Colonel Patrick O’Shea. A decorated combat veteran of Korea, O’Shea has been plucked from obscurity to be Kennedy’s military advisor, and is tasked by the president to figure out what is really going on in Vietnam. The knives come out as O’Shea grapples with myriad threats to himself and the president he serves. The Pentagon, the CIA, the Corsican Mafia and the Chicago Mob are all conspiring against him.