Sydney discovers a link to her missing two years in the form of Simon Walker, the dangerous leader of a group determined on retrieving deadly biological weapons. Meanwhile, Vaughn struggles... See full summary »



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Episode cast overview, first billed only:
Laszlo Bogdan
Carlos Del Olmo ...


Sydney discovers a link to her missing two years in the form of Simon Walker, the dangerous leader of a group determined on retrieving deadly biological weapons. Meanwhile, Vaughn struggles with his own feelings of jealousy and longing while Sydney is on her mission, aware of the pressures his job is putting on his marriage to Lauren. Jack takes matters into his own hands to protect his daughter, and purposefully revealing Sydney's deadly secret of being a brainwashed assassin for the Covenant during her two-year absence to Dixon in order to preserve her position inside the CIA. Written by Anonymous

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Plot Keywords:

virus | past | identity | See All (3) »


TV-14 | See all certifications »




Release Date:

19 October 2003 (USA)  »

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Technical Specs

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Aspect Ratio:

1.78 : 1
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Did You Know?


In the scene where Sydney jumps from a high floor into a pool we expect to see two things happening, but they don't. First of all such a jump would force a lot of the pool's water to jump out as if a bomb exploded. That does not happen and we can only see the water's reaction as if someone from the ground level had just taken a plain dive. Also such jump with the above consequences should have first splashed all of the surrounding guests and even if that did not happen, it should have made them curious about the strange woman that has just jumped from a building floor inside the pool, half-naked, in the middle of a party. Yet we see no reaction and a man just gives her a towel as if everything is all right. See more »


The Spaniard characters talk in Latin American accents. See more »


Jack Bristow: We can assume what they've stolen is a precursor agent requiring further synthesis.
Eric Weiss: Okay, does everyone here speak science?
Marshall Flinkman: Yeah.
Eric Weiss: No, Marshall, they don't.
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Alias Theme
Written by J.J. Abrams
Performed by Michael Giacchino
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User Reviews

26 November 2009 | by See all my reviews

For anyone who might have been missing the feel of Season 1, where Sydney worked deep and long-term undercover, "A Missing Link" brings some of that feel back: when a member of a team who stole a deadly virus is infected during the operation (and dies a little later), Sydney is assigned to replace him and plant a tracking device on whatever they're planning on stealing next to make the virus even more dangerous. To be accepted into the team, Sydney has to earn the leader's trust, which turns out to be easier than expected because the man actually knows her by a different name, Julia! Which, it is now assumed, is also the name she was using when she killed that Russian diplomat. Lots of tension in this episode, as Sydney has to get intimate with a man whom she does not remember (although he clearly remembers her) and who is also a criminal, execute a daring robbery in 7 minutes, avoid being spotted by Sark when he is in the same room with her, make up a cover story for Vaughn, and find a way to deal with his exposure as a CIA agent. And I must say that her dive into the pool blows Halle Berry's dive into the sea in "Die Another Day" out of the water (no pun intended). *** out of 4.

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