04.13 Episode 79
Airdate: September 22, 2000

Daniel returns to his alma mater when he learns of the death of his former archaeology professor in a mysterious lab explosion. There he is reunited with his former colleagues, Sarah Gardner, with whom he once shared a relationship, and Steven Rayner, who resents his return. The professor had been studying a collection of Egyptian artifacts, but the circumstances of his death are suspicious. The explosion may not have been an accident, and rumors of an ancient curse begin to spread.

Daniel and Sarah begin an investigation, despite Steven's resistance. The artifacts had included two identical jars, and Daniel discovers that one of them contains the dead symbiote of Isis. Designed as a stasis chamber, the jar had kept the Goa'uld alive until the seal had recently been broken. However, the second jar containing Osiris is missing, and the Goa'uld is unaccounted for. When two more deaths occur on campus and another artifact turns up missing, suspicion begins to point toward Steven, who has boarded a flight for Cairo.

Daniel, Carter, and Dr. Fraiser follow Steven to Egypt, to the temple where the artifacts were found. Hoping to claim the discovery in the temple, Steven had arrived before them. However, they find him badly injured, and they learn the true fate of the missing Goa'uld. Osiris had indeed survived, and it was Sarah Gardner whom he had taken as a host. He appears at the temple, demanding obedience, and the location of the stargate, but when his demands go unanswered, he vows vengeance before uncovering a buried ship and escaping from Earth.

Written by: Joseph Mallozzi and Paul Mullie
Directed by: Andy Mikita

Guest Starring: Anna-Louise Plowman as Sarah Gardner/Osiris, Ben Bass as Dr. Steven Rayner, Teryl Rothery as Dr. Fraiser, David Abbott as Dr. David Jordan, Lorena Gale as Curator, Dan Shea as Sergeant Siler

Reference: Curse of Osiris, Egypt, Sarah Gardner, Isis, Daniel Jackson, David Jordan, Osiris, Steven Rayner, Sergeant Siler, Silver Creek, Stasis, Tranquilizer