Allegiance Show Summary, Upcoming Episodes and TV Guide

The O'Connors race to stop Black Dagger before it's too late in the nail-biting season finale.

The whole O'Connor clan go on the run, trying to escape both the FBI and the SVR while also plotting to expose Faber as the FBI mole.

Michelle's shooting causes problems and turmoil for Alex, and his family try to help him. Meanwhile, Victor and Natalie want to push up their escape; and Oscar poses as a Boston native when he gets acquainted with his new New York City neighbor.

The O'Connors send the task force on a wild goose chase to Italy, while Alex tracks down the Black Dagger triggerman.

Alex is confronted with the reality of his family's past just as his integrity is questioned at work. The FBI suspects a mole in the organization and brings in Special Agent Faber to investigate. Faced with testifying under oath and submitting to a polygraph test, Alex must for the first time fight against his own moral standards. Meanwhile, Victor finds a new way to keep tabs on the O'Connors, and Natalie makes a critical mistake while tracking down a lead.

In the aftermath of a violent shootout, Alex must convince the FBI to risk a dangerous covert operation to find Mikhail's hidden cache. With Agent Prado at his side, Alex leads a team to Philadelphia to retrieve the laptop from a secure government building, but Victor is a step ahead and orders the O'Connors to break in and steal the laptop first. Meanwhile, Katya discovers one of Natalie's most dangerous secrets, and forces her to choose between love and family.

Rookie CIA analyst Alex O'Connor is assigned his first case - to examine the statements of a defecting Russian spy, who claims that rogue elements within her organization are planning a catastrophic attack that will bring America to its knees. Unbeknownst to Alex, his parents, Katya and Mark, are part of the dormant Russian sleeper cell he's investigating, and an unwelcome friend from the past arrives on their doorstep to give them a new mission: turn their son into a spy before his investigation unmasks them. With nowhere to turn, Katya and Mark must choose - flag, or family.