Writer:	Jeffrey Bell, Monica Breen
Director:	Ken Olin
Star:	Greg Grunberg (Eric Weiss),  Mia Maestro (Nadia Santos),  Kevin Weisman (Marshall J. Flinkman),  Jennifer Garner (Sydney Anne Bristow),  Carl Lumbly (Marcus R. Dixon),  Ron Rifkin (Arvin Sloane),  Michael Vartan (Michael C. Vaughn),  Victor Garber (Jonathan 'Jack' Donahue Bristow)
Recurring Role:	Sonia Braga (Sophia Vargas)
Guest Star:	Kevin Alejandro (Cesar Marquez),  Jose Zuniga (Roberto Fox),  Gisselle Castellanos (Young Nadia),  Adrian R'Mante (Diego),  Michelle Martel (Sleeping Girl),  Alejandro Furth (Owner),  Ivan Saric (Architect),  Alexander Kuznetsov (Assault Team Leader)

Sonia Braga was billed as Special Guest Star in this episode. (edit) This episode averaged 6.88 million viewers. (edit)

(Sydney helps Vaughn find a hidden message in a text)
Sydney: My father used to encrypt my crossword puzzles, when I was a kid... The least of my childhood dysfunctions. (edit) (Marshall's just broken an encryption code)
Marshall: Bow before me and weep encryption gods. (edit) (Nadia comes home after working out)
Sydney: What's going on?
Nadia: Nothing.
Sydney: When something bothers me I go running, you've been out twice in less than 12 hours. (edit) Sydney: (to Sloane about Nadia) She had a relationship with [Cesar], she can use him. You of all people should appreciate that. (edit) Marshall: Signiture... plus... password... plus a little Flinkman secret sauce... Nice. Bow before me, encryption gods. (edit)

Goof: During the first conversation Roberto Fox has with Nadia, when she was in the cell, he uses words an Argentinian wouldn't normally use. He says "tienes" (have, in Spanish) instead of "tenes", and "tu" (you, in Spanish) instead of "vos". These expression are nearly exclusive to Argentinians. The language however is corrected in Roberto and Nadia's later conversations. (edit)

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