A young CIA operative, Annie Walker, is mysteriously summoned to headquarters for duty as a field operative. While Annie believes she's been promoted for her exceptional linguistic skills, there may be something or someone from her past that her CIA bosses are really after. Auggie Anderson is a CIA military intelligence agent who was blinded while on assignment and is Annie's guide in this world of bureaucracy, excitement and intrigue.
Annie and Auggie consider their future just as a connection from the past resurfaces and leads Annie on a race against time to prevent a terrorist attack on U.S. soil. Elsewhere, tension mounts between Calder and Joan as they wait to see who will become the new DCS and Arthur considers about a career in the private sector.
Annie thinks about working with Ryan McQuaid in an effort to catch a terrorist in Venezuela. Auggie is questioned by the NCTC.
After a botched escape attempt, Annie and McQuaid combine forces to get out of Venezuela. Joan works with Arthur and his new co-worker, Caitlyn Cook, to extract their fellow operatives. Calder’s clandestine affair takes on a new dimension.
Annie and McQuaid search for an off-grid ex-CIA agent in Azerbaijan; Auggie learns upsetting information about an old friend; Calder has a confrontation with Joan.
Annie and Auggie dig into a conspiracy theory about the attack on the CIA; Joan and Calder must make a difficult decision.
Annie begins an operation without support from the agency; Calder interrogates Auggie; McQuaid Security has a new recruit.
Annie helps McQuaid with a difficult mission, against Auggie's wishes; Hayley's hunt for the truth becomes more dogged.
McQuaid's health hangs in the balance; Annie seeks information in Istanbul; Arthur takes control of McQuaid Security; Calder has a new recruit.
Annie searches for a rogue chemist in Germany; questions about Joan's time in the Balkans.
After a startling revelation, Annie works with a new ally; McQuaid and Joan go into the field.
Annie and McQuaid must sneak into Russian territory in pursuit of Belenko.
Annie and McQuaid's relationship deepens while tracking down Belenko's next target.
With Russian Vega Force assassins on their trail, Annie and McQuaid work together to escape.