When Annie and Ben go back to Washington DC, Ben goes missing. Annie is assigned to keep a professional tennis player from Estonia safe.

Annie learns that her college professor Mark Ramsay was secretly working for the CIA when he was killed tracking a Pakistani spy ring. The CIA asks Annie to find the missing intel using her connection to Ramsay's widow Safia.

Annie keeps tabs on the daughter of a CIA analyst imprisoned for selling intelligence. After an asset is killed in Russia, the CIA suspects the woman could be helping her father.

After tragedy shakes up the CIA, Annie and the rest of the DPD find themselves in an unfamiliar situation.

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