After a bombshell revelation rocks the CIA, Annie and Auggie combine forces with Arthur in an attempt to bring Henry’s hidden agenda to light. Joan finds a personal moment to confide in Annie.

Annie returns to Colombia and must determine Teo Braga’s true allegiances in order to thwart a potential act of terrorism. Joan begins a round of interviews that could significantly alter her career trajectory within the CIA.

As Annie and Auggie’s romance heats up, both begin to notice how it strains their working relationship within the CIA. Arthur and Henry almost come to blows.

Annie is sent to Vienna, and must cut all communication with Auggie. Meanwhile, Joan and Arthur decide to bring in reinforcements.

Annie gets involved in an FBI investigation in order to cover her tracks. Elsewhere, Henry presents Annie with a major opportunity.

Annie finds she has met her match when she has to work to halt the illegal sale of deadly weapons and is teamed up with a seasoned operative. Meanwhile, circumstances force Auggie to deal with past demons' and Calder's suspicions of Annie Walker grow.

Annie convinces Teo to turn on one of his men, while Joan makes a decision. Elsewhere, Calder shows his true colors and Auggie faces trouble.

Annie must stop Teo from committing a terrible act. Elsewhere, Auggie discovers Calder's allegiances and Arthur seeks help in defending the Campbell name.

Annie makes a desperate attempt to take down Henry. Elsewhere, Calder and Annie finally face off.

Annie begins her first deep cover operation completely on her own. Meanwhile, Auggie, Joan, Arthur and the rest of the CIA manage the fallout from Annie’s "death" at Calder’s hands.

Despite his misgivings, Auggie decides to work with Calder on an alternate method to destroy Henry. Joan confronts Auggie about this alliance.

Henry reaches out to his only ally within Langley, Calder. Joan reveals something during her deposition that puts a wedge between herself and Arthur. An old flame reveals she still holds a torch for Auggie.

Annie travels to New York after receiving new intelligence. Elsewhere, Arthur's court date looms nearer, and Joan finds a solid lead.

Annie, Auggie and Calder go on an unauthorized mission to Hong Kong in the hope of apprehending Henry's courier. Meanwhile, Joan and Arthur reveal a traitor who's been hiding in plain sight.

Calder wonders if Joan is the only person he can trust when he returns to the United States with good news. Elsewhere, Annie and Auggie continue their work to bring Henry to justice.