Season 3
22 episodes · premiered Jun 25, 1999
SG-1 in their fight against the Goa'uld Empire's System Lords, the main being Sokar until "The Devil You Know" and then Apophis, after he regained power during that episode.
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E1 Into the Fire (2)
O'Neill, Carter and Jackson must escape Hathor's clutches, while Teal'c tries to raise a Jaffa army on Chulak. General Hammond must take desperate measures to rescue the team.
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E2 Seth
SG-1 must find a renegade Goa'uld who has been hiding on Earth for thousands of years.
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E3 Fair Game
The Asgard aid Earth in negotiating a nonagression treaty with the Goa'uld System Lords.
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E4 Legacy
When Daniel goes insane, SG-1 must deal with the legacy of Machello's anti-Goa'uld technology.
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E5 Learning Curve
SG-1 discovers a planet where children are used to acquire knowledge for the entire population, then discarded.
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E6 Point of View
SG-1 must free an alternate reality Earth from a Goa'uld invasion after duplicates of Samantha Carter and Charles Kawalsky come through the quantum mirror.
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E7 Deadman Switch
SG-1 is taken captive by an alien bounty hunter with uncertain loyalties.
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E8 Demons
SG-1 finds a medieval Christian society terrorized by Sokar and the Unas, and is accused of being possessed by demons.
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E9 Rules of Engagement
SG-1 discovers a military camp where young men are trained to impersonate SGC personnel to infiltrate Earth.
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E10 Forever in a Day
Jackson deals with the apparent death of his wife, Sha're, at the hands of Teal'c.
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E11 Past and Present
SG-1 encounters an entire planet suffering from amnesia. The planet's leader returns to Earth with SG-1 to find a cure, but SG-1 suspects she may not be who she appears to be.
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E12 Jolinar's Memories (1)
When Major Carter's father Jacob is kidnapped by Sokar, the SG-1 team must infiltrate a prison moon designed to look like hell to rescue him.
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E13 The Devil You Know (2)
SG-1 must escape a hellish prison moon, and one of their worst enemies.
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E14 Foothold
SG-1 returns from a mission and discovers that metamorphic aliens have taken over the complex.
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E15 Pretense
The Tollan put Skaara and Klorel on trial to determine who will control the host body.
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E16 Urgo
SG-1 receives alien brain implants that manifest themselves as a bizarre man, who tells them that they would not survive the procedure to remove him.
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E17 A Hundred Days
After a meteor strike buries the Stargate, O'Neill finds himself stranded on a planet with no hope of rescue.
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E18 Shades of Grey
O'Neill steals technology from the Tollan, and is forced to leave the Stargate program. Maybourne offers an intriguing proposal.
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E19 New Ground
The members of SG-1 are imprisoned on a planet and become pawns in a war of ideology.
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E20 Maternal Instinct
SG-1 discovers the mystical planet Kheb, and must find the Harcesis child of Apophis and Sha're before Apophis's army does.
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E21 Crystal Skull
An alien artifact causes Daniel to disappear, and the team looks for help from his institutionalized grandfather.
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E22 Nemesis (1)
SG-1 faces creatures of mass destruction that even the Asgard can't control, and must destroy Thor's infested vessel before the Replicator bugs reach Earth.