When the FBI intercepts stolen NSA software intended for Tal, Keaton uses the technology as an opportunity to go on the offensive and sends Shepherd undercover. Keaton must choose between catching Tal or saving the life of an innocent teenager.

When a group of contractors working for the CIA is murdered, Keaton and the team discover the CIA is keeping secrets from the FBI regarding Tal. Shepherd's ex-husband finds out that Hannah has been lying and visiting Shepherd.

When a highly sophisticated Tal operative evades FBI custody and flees to the Swiss embassy, the Cointel team must go under cover. What begins as a smooth counterintelligence operation quickly devolves into a tense hostage situation.

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

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