A Russian arrives in Singapore with a secret to sell. When the Russian is killed and Sam Joseph, the CIA officer dispatched for the meet, goes missing, operational chief Artemis Procter is made a scapegoat for the disaster and run out of the service. Months later, Sam appears at Procter’s doorstep with an explosive secret: there is a Russian mole burrowed deep within the highest ranks of the CIA. As Procter and Sam investigate, they arrive at a shortlist of suspects made up of Procter’s closest friends and fiercest enemies. The hunt requires Procter to dredge up her checkered past in the service of the CIA, placing the pair in the sights of a savvy Russian spymaster who will protect Moscow’s mole in Langley at all costs.

CIA officers Sia and Max enter Russia under commercial cover to recruit Vladimir Putin’s moneyman. Sia works for a London law firm that conceals the wealth of the superrich. Max’s family business in Mexico, a CIA front since the 1960s, is a farm that breeds high-end racehorses. They pose as a couple to target Vadim, Putin’s private banker, and his wife, Anna, who --- unbeknownst to the CIA --- is a Russian intelligence officer under deep cover at the bank. As they descend further into a Russian world dripping with luxury and rife with gangland violence, Sia and Max’s only hope may be Anna, who is playing a game of her own.

CIA case officer Sam Joseph is dispatched to Paris to recruit Syrian Palace official Mariam Haddad. The two fall into a forbidden relationship, which supercharges Haddad’s recruitment and creates unspeakable danger when they enter Damascus to find the man responsible for the disappearance of an American spy. But the cat-and-mouse chase for the killer soon leads to a trail of high-profile assassinations and the discovery of a dark secret at the heart of the Syrian regime, bringing the pair under the all-seeing eyes of Assad’s spy catcher, Ali Hassan, and his brother Rustum, the head of the feared Republican Guard.