Alex O'Connor, a young idealistic CIA analyst specializing in Russian affairs, learns a shocking secret and his close-knit, affluent family is about to be split apart when it's revealed that his parents, Mark and Katya, are covert Russian spies deactivated decades ago. But today the Kremlin has re-enlisted them into service as they plan a terrorist operation inside the U.S. border that will bring America to its knees.
The O'Connors race to stop Black Dagger before it's too late in the nail-biting season finale.
Sam and Alex join forces to find Oscar Christoph; Victor plots to take down the Rezident.
Hunted by both the SVR and the FBI, the O'Connors go on the run, desperate to out Faber as the mole before it's too late.
Wanted in connection with Michelle's disappearance, Alex accepts help from an unlikely ally.
Michelle's shooting puts Alex at odds with the task force. The Black Dagger triggerman makes his next move.