Tal's war on the CIA expands to two fronts; Keaton must locate the domestic target before Chigorin launches an all-out assault; Shepherd convinces Keaton to let her go to Cuba.

Keaton and his team intervene and stop the assassination of a high-profile congresswoman who had previously used Shepherd's treason conviction as a launching pad for her political career.

When a highly sophisticated Tal operative evades FBI custody and flees to the Swiss embassy, the CoIntel team must go undercover and it turns into a tense hostage situation.

When a group of contractors working for the CIA is murdered, Keaton discovers the CIA is keeping secrets from the FBI regarding Tal. Shepherd's ex learns Hannah has been visiting Shepherd.

After a major Tal operative escapes CIA custody, Shepherd returns to Langley to help track the fugitive down. Shepherd and Keaton discover the CIA is withholding vital information on Tal.

Flashbacks to the past reveal the fateful events that led CIA Deputy Director Erica Shepherd to betray her country and the investigation that put her on a collision course with Will Keaton.