Sydney and Vaughn go undercover to track down a deadly new bio-weapon. Meanwhile, Sydney is concerned about Vaughn not having yet put Lauren behind, and Nadia turns to a Jack to ask for his help in finding out the truth about her mother's murder, who tries to throw Nadia away from the evidence pointing to him. Written by
Did You Know?
This episode averaged 14.00 million viewers. Richard Speight Jr. previously co-starred in The Agency, another series about CIA agents. He played Lex, a geeky, somewhat Marshall-ish character. See more
Sloane tells Nadia that his affair with Irina was "brief". However, given that he once thought Sydney might be his daughter and that Irina left while pregnant by Sloane when Sydney was six, the affair must have been lengthy. See more
Irina told me years ago that this is a picture of her holding her niece. She told me that holding this baby filled her with a longing and a hope to have children of her own. The next day I asked Irina to marry me; I wanted my child to be loved like the baby in this photograph. Of course, her story could have been a total fabrication, another one of her countless lies designed to draw me in. But I choose to believe it was truth. When we had Sydney, Irina held her in this exact same way...
Written by J.J. Abrams
Performed by Michael Giacchino See more