Unnatural Selection (2)
Show: Stargate SG-1 --> Season: 6 - Season 6
AirDate: 1/10/2003
Runtime: 44
Voting: 8.4 (20)

Overview: The team is called into battle unexpectedly when the Asgard homeworld is overrun by Replicators -- which have evolved into a startling new form.
Gary Jones
Walter Harriman
Dan Shea
Sylvester Siler
Tahmoh Penikett
Third
Ian Buchanan
First
Harley Jane Kozak
Sara O'Neill
Kristina Copeland
Second
G. Patrick Currie
Fifth
Shannon Powell
Sixth
Rebecca Reichert
Fourth
Michael Shanks
Thor (voice)