In Plain Sight - The Rolling Stones

Seizoen: 4 - Aflevering: 9 / 49 - Eerst uitgezonden: 10 juli 2011 - Episode ID: 556681

Mary gets a WITSEC two-fer, when a witness is forced to enter the program after being mistaken for his "evil" twin brother. Not only must she protect the pair from their enemies, but also from each other.