Episode 72 of "Alias"
s04e06 Nocturne
Title: Nocturne
Original Air Date: 02/09/2005 on ABC
Director: Lawrence Trilling
Writer: Jeff Pinkner
Guest Stars: Michael Nagy (Letuza - Pale Blonde Man), Will Schaub (Jason Cahill), Michael Goorjian (Andre Sterescu), Craig Ricci Shaynak (Czech Guard), Julie Ann Emery (Nancy Cahill), Julia Levy Boeken (Martina), Liza de Weerd (Anna - Dutch Student), Sunah Bilsted (Kissing Blonde), Ryan Gentry (Not Vaughn)
Plot Outline:
After being infected with a hallucinogen, Sydney starts to lose touch with reality. Vaughn and Jack must rush to find an antidote before Sydney puts her life - and others next to her - into danger.
