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
When Jack shows Nadia the picture of Irina holding her niece as a baby, the picture originally shows Irina holding her in her left arm, in the next shot it shows her holding her in the right arm, and then switches back to the left See more
[Dixon punches Vaughn
Come on man, it's gotta look real. Do it again.
Vaughn, I hit you.
Yeah, like a girl. Just hit me again. Come on!
[Dixon punches Vaughn again
[winces and smiles
One more time, you can do better than that, come on; one more time.
[Dixon punches him again
Written by J.J. Abrams
Performed by Michael Giacchino See more