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Season guide

Stargate SG-1: Season 3

22 episodes Premiered Jun 25, 1999 Updated Sep 19, 2026

Stargate SG-1 Season 3 continues the overarching saga across 22 episodes. The series is a military science fiction adventure television series within Metro-Goldwyn-Mayer's Stargate franchise. The story of Stargate SG-1 begins about a year after the original film, continuing the narrative created by Jonathan Glassner and Brad Wright.

Previously on Stargate SG-1

Season 3 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • The television series Stargate SG-1 continues the story from the original film.
  • The series was created in 1997 by Jonathan Glassner and Brad Wright.
  • Stargate SG-1 is a military science fiction adventure television series within Metro-Goldwyn-Mayer's Stargate franchise.
  • The story of Stargate SG-1 begins about a year after the events that preceded it.

Season overview

Stargate SG-1 Season 3 continues the overarching saga across 22 episodes. The series is a military science fiction adventure television series within Metro-Goldwyn-Mayer's Stargate franchise. The story of Stargate SG-1 begins about a year after the original film, continuing the narrative created by Jonathan Glassner and Brad Wright.

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Season 3 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 3 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 3: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

Time Saved 0.8h Skipping 1 filler episode
14%
82%
Mytharc (3): Crucial lore & season climaxes
Core (18): Character development & subplots
Side Quest (1): Standalone / filler
S3·E1 Mytharc

Into the Fire (2)

Jun 25, 1999

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.

S3·E2 Core

Seth

Jul 2, 1999

SG-1 must find a renegade Goa'uld who has been hiding on Earth for thousands of years.

S3·E3 Core

Fair Game

Jul 9, 1999

The Asgard aid Earth in negotiating a nonagression treaty with the Goa'uld System Lords.

S3·E4 Core

Legacy

Jul 16, 1999

When Daniel goes insane, SG-1 must deal with the legacy of Machello's anti-Goa'uld technology.

S3·E5 Core

Learning Curve

Jul 23, 1999

SG-1 discovers a planet where children are used to acquire knowledge for the entire population, then discarded.

S3·E6 Core

Point of View

Jul 30, 1999

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.

S3·E7 Core

Deadman Switch

Aug 6, 1999

SG-1 is taken captive by an alien bounty hunter with uncertain loyalties.

S3·E8 Core

Demons

Aug 13, 1999

SG-1 finds a medieval Christian society terrorized by Sokar and the Unas, and is accused of being possessed by demons.

S3·E9 Core

Rules of Engagement

Aug 20, 1999

SG-1 discovers a military camp where young men are trained to impersonate SGC personnel to infiltrate Earth.

S3·E10 Core

Forever in a Day

Oct 8, 1999

Jackson deals with the apparent death of his wife, Sha're, at the hands of Teal'c.

S3·E11 Core

Past and Present

Oct 15, 1999

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.

S3·E12 Core

Jolinar's Memories (1)

Oct 22, 1999

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.

S3·E13 Core

The Devil You Know (2)

Oct 29, 1999

SG-1 must escape a hellish prison moon, and one of their worst enemies.

S3·E14 Core

Foothold

Nov 5, 1999

SG-1 returns from a mission and discovers that metamorphic aliens have taken over the complex.

S3·E15 Core

Pretense

Jan 21, 2000

The Tollan put Skaara and Klorel on trial to determine who will control the host body.

S3·E16 Core

Urgo

Jan 28, 2000

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.

S3·E17 Filler

A Hundred Days

Feb 4, 2000

After a meteor strike buries the Stargate, O'Neill finds himself stranded on a planet with no hope of rescue.

S3·E18 Core

Shades of Grey

Feb 11, 2000

O'Neill steals technology from the Tollan, and is forced to leave the Stargate program. Maybourne offers an intriguing proposal.

S3·E19 Core

New Ground

Feb 18, 2000

The members of SG-1 are imprisoned on a planet and become pawns in a war of ideology.

S3·E20 Core

Maternal Instinct

Feb 25, 2000

SG-1 discovers the mystical planet Kheb, and must find the Harcesis child of Apophis and Sha're before Apophis's army does.

S3·E21 Mytharc

Crystal Skull

Mar 3, 2000

An alien artifact causes Daniel to disappear, and the team looks for help from his institutionalized grandfather.

S3·E22 Mytharc

Nemesis (1)

Mar 10, 2000

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.