April 17 Episode-Tess, Lies and VideoTape – Spoiler!
From WB Media Site…
“Tess, Lies and Videotape” TV-PG, D
A FIFTH ALIEN IS REVEALED � While Max (Jason Behr) struggles to resist the strange but undeniable attraction he feels for Tess (Emilie De Ravin), Sheriff Valenti (William Sadler) tries to win the trust of the aliens by returning their mysterious orb and revealing shocking information about Topolsky�s fate. Michael�s (Brendan Fehr) discovery of a hidden surveillance camera in his apartment increases everyone�s paranoia, and Liz (Shiri Appleby) puts herself in danger when she visits Tess and her father (guest star Jim Ortlieb) and plants the camera in their home. Everyone is stunned when the camera reveals that a fifth alien is among them. Katherine Heigl, Majandra Delfino, Colin Hanks and Nick Wechsler also star. Paul Shapiro directed the episode written by Richard Whitley (#1ADA17).