Season: 2

Original Airdate: August 7, 1998

Writer(s): Story: Michael Greenburg & Jarrad Paul
Teleplay: Brad Wright

Director(s): David Warry-Smith

Guest Stars
Teryl Rothery as Dr. Janet Fraiser
Tobias Mehler as Lt. Graham Simmons
Gary Jones as Technician
Kevin Conway as SG Leader
Dan Shea as Sergeant Siler

Synopsis: A seemingly harmless orb is brought back to the SGC base from a dead world. The strange device infects Jack O’Neill with an alien organism which soon begins to spread. When Carter’s attempts to halt its rapid growth fail, Daniel Jackson realizes that the only chance to save Jack is to let the organism control him in order to communicate.

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