Season: 4

Original Airdate: January 4, 2008

Writer(s): Martin Gero

Director(s): Andy Mikita

Guest Stars
Michael Beach as Col. Abraham Ellis
Mitch Pileggi as Col. Steven Caldwell
David Nykl as Dr. Radek Zelenka
Jill Wagner as Larrin
Christopher Heyerdahl as Wraith
Brendan Penny as Wraith
Michelle Morgan as FRAN (FRAn: Friendly Replicator ANdroid)
Martin Christopher as Major Marks
Torri Higginson as Weir Replicant
Niall Matter as Lt. Kemp
Chuck Campbell as Technician (Chuck)
Jason Coleman as Larrin’s Crewman
Patricia Cullen as Replicator Crew Member

Synopsis: The Atlantis Expedition and the Wraith join forces to execute a daring plan against a common enemy.