Season: 8

Original Airdate: February 15, 2005

Writer(s): Joseph Mallozzi & Paul Mullie & Brad Wright & Robert C. Cooper

Director(s): Peter DeLuise

Guest Stars
David Hewlett as Dr. Rodney McKay
Don S. Davis as General George Hammond
Robert Wisden as Major Samuels
Colin Cunningham as Major Davis
David Lewis as Dr. Balinsky
James Purcell as Dr. Hersfield
Alessandro Juliani as Katep
Georgia Craig as Sabrina Gosling
Jay Williams as Ra
Benjamin Easterday as Ra’s Jaffa Commander
Neil Schell as Mr. Crandall
Maurico Vasquez as Student

Synopsis: When Catherine Langford dies, Daniel inherits her collection. He finds reference to a Zero Point Module (ZPM) in a book about Ra in Egypt in 3000 B.C. SG-1 use the Ancient time machine to go back in time to retrieve the ZPM but when their ship is discovered, they create a different future in which the SGC does not exist and their alternate selves lead very different lives.

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