July 27, 1997: Children of the Gods, Conclusion: O'Neill and his crew learn that Jackson (Michael Shanks) has discovered a map revealing the location of many more Stargates.

July 27, 1997: Children of the Gods, Part 1: In the series pilot, colonel Jack O'Neill (Richard Dean Anderson) is recalled to duty to retrieve a scientist he left on the planet of Abydos one year before.

August 1, 1997: The Enemy Within: New SG-2 commander Kowalsky (Jay Acovone) is overtaken by a parasite, which then forces the leader to try to reenter the Stargate.

August 8, 1997: Emancipation: While negotiating for weapons, inhabitants of the planet Simarka are exposed to Carter (Amanda Tapping), who causes them to rethink the role of women in their society.

August 15, 1997: Broca Divide: Two Stargate teams enter a world plagued by a disease that causes humans to regress into cave people.

August 22, 1997: The First Commandment: The team discovers missing SG-9 leader Jonas Hanson (William Russ), a former lover of Carter's who's now the godlike ruler of a primitive planet.

August 29, 1997: Cold Lazarus: A blue energy crystal helps O'Neill confront his grief over the death of his young son.

September 12, 1997: The Nox: O'Neill and the team are sent to a planet in search of mysterious beings that have the power to disappear.

September 19, 1997: Brief Candle: A deadly virus afflicting a planet's inhabitants may have been created by the Goa'ulds.

September 26, 1997: Thor's Hammer: O'Neill and Teal'c (Christopher Judge) find themselves imprisoned on a planet ruled by an enemy of the Goa'uld.

October 3, 1997: Torment of Tantalus: The team searches for a man who went through the Stargate in 1945 as part of a secret experiment.

October 10, 1997: Bloodlines: Teal'c takes the SG-1 team back to the planet Chulak to save his son from Goa'uld implantation.

October 17, 1997: Fire and Water: While the SG-1 team members believe he is dead, Jackson is held prisoner by an alien.

October 24, 1997: Hathor: After an ancient Goa'uld is revived, the temptress begins seducing all of the Stargate men.

October 31, 1997: Singularity: Carter is torn when the team learns that a young girl (Katie Stuart), the lone survivor of a planet devastated by disease, has been implanted with a bomb in a Goa'uld attempt to destroy the Stargate.

January 23, 1998: Cor-Al: Teal'c is placed on trial by the son of a man he killed while working for the Goa'uld.

January 30, 1998: Enigma: The team searches for a home for survivors of a planet destroyed by a volcano.

February 6, 1998: Solitudes: O'Neill and Carter are trapped in Antarctica after returning to Earth through a Stargate of unknown origin.

February 13, 1998: Tin Man: O'Neill and his SG-1 team members are transformed into robots while on a mission.

February 20, 1998: There but for the Grace of God: Jackson is pulled into an alternate reality — one in which Earth has been invaded by the Goa'uld.

February 27, 1998: Politics: A powerful U.S. senator (Ronny Cox) vows to shut down the Stargate project, despite Jackson's passionate belief that the Goa'uld will soon invade Earth.

March 6, 1998: Within the Serpent's Grasp: As the Government prepares to shut down the project, the SG-1 team takes what may be their final trip through the gate, finding themselves on a Goa'uld ship carrying Skaara (Alexis Cruz).

SEASON 2

June 26, 1998: Serpent's Lair: O'Neill and the SG-1 team are captured while trying to stop a Goa'uld warship set to attack Earth.

July 3, 1998: In the Line of Duty: A Goa'uld rebel takes control of Carter's body and forces O'Neill to protect the alien from an assassin.

July 10, 1998: Prisoners: The team is imprisoned on a penal planet after inadvertently helping an escaped murderer.

July 17, 1998: Gamekeeper: The team encounters a mysterious figure identified as the Keeper (Dwight Schultz), who traps them in a world where they relive pivotal moments in their lives.

July 24, 1998: Need: Jackson falls in love with a beautiful princess (Heather Hanson), who nurses him back to health with the aid of Goa'uld technology.

July 31, 1998: Thor's Chariot: After destroying a planet's line of defense, O'Neill and the SG-1 team find themselves helping the inhabitants fight off a Goa'uld invasion.

August 7, 1998: Message in a Bottle: The team returns from a barren planet with an artifact that soon takes control of O'Neill and the command crew.

August 14, 1998: Family: Bra'tac (Tony Amendola) arrives through the gate with news that the Goa'uld leader, Apophis, survived the destruction of his ship and has kidnapped the son of Teal'c.

August 21, 1998: Secrets: Jackson and Teal'c return to Abydos, where Jackson learns that his wife is pregnant with the child of Apophis; and a reporter threatens to print a story about the Stargate program.

September 25, 1998: Bane: Teal'c undergoes a metamorphosis after being stung by a giant insect.

October 2, 1998: Tok'ra, Part 1: A dream leads Carter and the team on a mission to form an alliance with the Tok'ra, an alien group rebelling against the Goa'uld.

October 9, 1998: Tok'Ra, Conclusion: Carter's father (Carmen Argenziano) agrees to become a host for a Tok'ra in order to form an alliance with the aliens, but a mutual enemy threatens the plan.

October 23, 1998: Spirits: O'Neill and the SG-1 team encounter mysterious spirits while trying to mine a planet.

October 30, 1998: Touchstone: O'Neill and the team stumble upon a secret government plot while trying to return a stolen weather device to a planet.

January 22, 1999: The Fifth Race: While on a mission to decode ancient inscriptions, O'Neill has his mind overtaken by a superior knowledge.

January 29, 1999: A Matter of Time: The lives of the team are endangered after a rescue effort goes awry, and O'Neill's former colleague (Marshall Teague) is sent to help them.

February 5, 1999: Holiday: When a dying alien switches bodies with Jackson, O'Neill and Teal'c risk their own bodies to save their friend.

February 12, 1999: The Serpent's Song: Pursued by an ancient enemy, the former Goa'uld leader Apophis (Peter Williams) asks for sanctuary from his current adversary, O'Neill.

February 19, 1999: One False Step: While visiting a planet, the team unwittingly unleashes a plague that threatens to destroy the civilization's gentle inhabitants.

February 26, 1999: Show and Tell: A boy (Jeff Gulka) arrives through the gate to warn Earth of an impending attack by an invisible race of aliens bent on destroying humanity.

March 5, 1999: 1969: The SG-1 team travels back in time, finding themselves on Earth in 1969 and coming face-to-face with a young Hammond.

March 12, 1999: Out of Mind: O'Neill awakens in strange surroundings and is told that he has been frozen for nearly eighty years — and the rest of the SG-1 team is long dead.

SEASON 3

June 25, 1999: Into the Fire: O'Neill, Jackson and Carter are held hostage by alien temptress Hathor (Suanne Braun), queen of the conquering Goa'ulds.

July 2, 1999: Seth: The SG-1 team searches for a Goa'uld lord who has been living on Earth for millenniums.

July 9, 1999: Fair Game: The intense rivalry between the Go'auld System leaders puts the future of Earth in jeopardy.

July 16, 1999: Legacy: The legacy of Machello comes back to haunt the Stargate team.

July 23, 1999: Learning Curve: Jack's efforts to bring some fun into the life of a young alien could get him a court martial.

July 30, 1999: Point of View: When an alternate version of Earth is invaded by the Goa'uld, the Stargate crew must appeal to the alternate versions of themselves for help.

August 6, 1999: Dead Man Switch: A ruthless bounty hunter takes members of the Stargate team into custody.

August 13, 1999: Demons: The Stargate team wanders into a medieval civilization, where they are mistaken for demons.

August 20, 1999: Rules of Engagement: The Stargate team visits a planet where soldiers are engaged in a civil war.

October 8, 1999: Forever in a Day: Daniel Jackson reunites with Sha're, but the bond has unfortunate consequences.

October 15, 1999: Past and Present: The Stargate team visits a planet where all of the inhabitants suffer from amnesia.

October 22, 1999: Jolinar's Memories: In order to save her father, Carter must tap into the memories of Jolinar.

October 29, 1999: The Devil You Know: Trapped in a prison built to simulate hell, the team makes a daring escape plan.

November 5, 1999: Foothold: The team returns from an assignment, only to find that fellow residents of the AGC seem to have changed drastically.

January 21, 2000: Pretense: A trial is held to determine who lives or dies — Skaara or Klorel.

January 28, 2000: Urgo: A strange creature invades the minds of the Stargate crew.

February 4, 2000: A Hundred Days: A freak accident leaves Jack stranded on a planet with no way to return.

February 11, 2000: Shades of Grey: O'Neill makes a diplomatic faux pas that threatens Earth's peaceful relations with her allies.

February 18, 2000: New Ground: The Stargate team becomes an unwitting pawn in an ideological war between two planets.

February 25, 2000: Maternal Instinct: The Stargate team tries to find the missing Harsesis child before the Apophis do.

March 3, 2000: Crystal Skull: The Stargate crew seeks the aid of Jackson's grandfather when a colleague disappears.

March 10, 2000: Nemesis: The Stargate crew battles destructive creatures no one can seem to control.

SEASON 4

June 30, 2000: Small Victories: SG-1 takes on the replicators that have invaded Earth.

July 7, 2000: The Other Side: SG-1 answers a distress call from a civilization whose roots can be traced back to Earth.

July 14, 2000: Upgrades: The team is shown a device that turns them into superhumans.

July 21, 2000: Crossroads: Teal'c reunites with a former love who claims she's discovered the secret to defeating the Goa'uld.

July 28, 2000: Divide and Conquer: The crew believes they may have fallen victim to an untraceable method of Goa'uld mind control.

August 4, 2000: Window of Opportunity: After being exposed to an unusual alien machine, O'Neill and Teal'c begin to relive the same day over and over again.

August 11, 2000: Watergate: The Russians discover a Stargate and turn to the SG-1 team for help in dealing with it.

August 18, 2000: The First Ones: When scientist Daniel Jackson is captured by an Unas, he's forced to use his skills and wits to survive.

August 25, 2000: Scorched Earth: The crew gets caught between two warring civilizations who are trying to colonize a planet.

September 1, 2000: Beneath the Surface: The team members of SG-1 find themselves toiling on an alien power station, but have no recollection of their former lives.

September 8, 2000: Point of No Return: O'Neill encounters an unusual being who is surprisingly knowledgeable about the Stargate program.

September 15, 2000: Tangent: When the test flight of a recovered Goa'uld death ship malfunctions, O'Neill and Teal'c are sent hurtling through space.

September 22, 2000: The Curse: Daniel's mentor dies, which leads to a reunion with both a former friend and a former foe from their past.

September 29, 2000: Serpent's Venom: When it's discovered that two powerful system lords are planning an alliance, the team is sent to investigate.

January 5, 2001: Chain Reaction: Gen. Hammond announces his retirement, leaving the crew aghast.

January 12, 2001: 2010: The year 2010 dawns and brings many significant changes to both Earth and to the SGC.

January 19, 2001: Absolute Power: After he's reunited with the Harsesis child, Daniel's behavior changes, making the crew concerned.

January 26, 2001: The Light: On a visit to a strange planet, the crew becomes mesmerized by a stunning mechanism that apparently has an ugly side.

February 2, 2001: Prodigy: Carter makes it her business to offer guidance to a promising cadet who is on the verge of ruining her future with SG-1.

February 9, 2001: The Entity: An alien virus infiltrates the SGC computer and gathers classified data about the crew and the ship. When the virus is presumed killed, it is learned that it has actually sought refuge in Carter's body.

February 16, 2001: Double Jeopardy: A former acquaintance seeks the crew's help.

February 23, 2001: Exodus: The Tok'ra decide to reunite with SG-1 after the crew steals a Goa'uld mother ship.

SEASON 5

June 29, 2001: Enemies: The crew loses a member and must battle Apophis on a ship far from Earth.

July 6, 2001: Threshold: In an attempt to free his mind from Apophis, Teal'c must undergo a trying Jaffa ritual.

July 13, 2001: Ascension: After arriving on an alien planet, Carter passes out and awakens in the company of a strange new friend.

July 20, 2001: The Fifth Man: A new crew member raises suspicions.

July 27, 2001: Red Sky: The crew members of SG-1 discover that their wormhole may be causing problems on a friendly world.

August 3, 2001: The Rite of Passage: Cassandra comes to possess some strange new powers that may affect her future and that of SG-1.

August 10, 2001: Beast of Burden: Daniel undertakes a rescue mission when his Unas friend Chaka is abducted by slave traders.

August 17, 2001: The Tomb: When some soldiers get lost in an alien temple, the crew teams with a Russian Stargate squad in a rescue mission.

August 24, 2001: Between Two Fires: O'Neill is suspicious when the Tollans decide to share some of their weapons technology with the Stargate crew.

August 31, 2001: 2001: In a prequel to the episode titled "2010," the crew meets an alien race that appears to be too good to be true.

September 7, 2001: Desperate Measures: When Major Carter is abducted by a mysterious man in black, Gen. Hammond authorizes O'Neill and Daniel to find her. The two track her to a hospital where dangerous experiments are being conducted.

September 8, 2001: Wormhole X-treme: A conspiracy theorist (Willie Garson) who's "not just interested in outer space, [he's] from outer space" creates a sci-fi TV series that features plots that could expose the top-secret Stargate program.

March 8, 2002: Proving Ground: O'Neill and a group of young trainees are thrust into action when Stargate Command needs them for a real mission.

March 15, 2002: 48 Hours: The SG-1 team races against time when Teal'c fails to return through the Stargate.

March 22, 2002: Summit: Scientist Daniel Jackson goes undercover at a secret meeting of Goa'uld System Lords.

March 29, 2002: Last Stand: The Goa'uld hatch a plot to destroy their enemy.

April 5, 2002: Fail Safe: SG-1 is Earth's last line of defense when the planet is threatened by a giant asteroid.

April 12, 2002: The Warrior: The charismatic leader of the Jaffa rebellion welcomes Teal'c and Bra'tac to the fight.

April 26, 2002: Menace: With the Asgard being threatened, a beautiful young android may be the key to its survival.

May 3, 2002: The Sentinel: O'Neill turns to two convicted criminals to help repair an alien device that could be instrumental in the Goa'uld's attempt to annihilate the world.

May 10, 2002: Meridian: Attempts to build a weapon of mass destruction may spell doom for an alien civilization faced with extinction. During his investigation, Daniel is exposed to massive doses of radiation.

May 17, 2002: Revelations: Osiris and Anubis launch an attack on an Asgard laboratory.

SEASON 6

June 7, 2002: Redemption, Part 1: Part 1 of the two-part sixth-season premiere of the series about a military squad that explores various universes. O'Neill is ordered to replace a teammate, and alien Jonas Quinn (Corin Nemec) wants the job; tragedy strikes Teal'c; an unidentified power source disrupts the portal.

June 14, 2002: Redemption, Conclusion: O'Neill and his team concoct a desperate plan to thwart an alien scheme to turn the Stargate into a doomsday weapon.

June 21, 2002: Descent: A salvage operation goes wrong, leaving O'Neill and his team trapped at the bottom of the Pacific Ocean in an alien mothership.

June 28, 2002: Frozen: O'Neill and his team are stranded at a research station in the Antarctic along with an enigmatic young woman they discovered frozen in the ice.

July 12, 2002: Nightwalker: The SG-1 team investigates a sleepy seaside town whose residents harbor an insidious secret.

July 19, 2002: Abyss: An amnesiac O'Neill awakens to find himself the prisoner of a mysterious lord.

July 26, 2002: Shadow Play: Quinn's former mentor enlists his help for a scheme to overthrow the Kelowna government in an attempt to bring peace to their war-torn planet.

August 2, 2002: The Other Guys: Members of SG-1 are taken prisoner by the Gou'ald and their fate rests in the hands of unlikely heroes.

August 9, 2002: Allegiance: An invisible assassin embarks on a killing spree that threatens to spark a war between the Jaffa and the Tok'ra unless SG-1 can put a stop to the murders.

August 16, 2002: The Cure: The Pangarean civilization is threatened by the side effects of a flawed miracle drug, leading to an SG-1 investigation that unearths revelations about the origins of the Tok'ras.

August 23, 2002: Prometheus, Part 1: Hostiles posing as a TV news crew infiltrate SG-1 headquarters in search of an alien spaceship that is being rebuilt by government scientists in the underground bunker.

January 10, 2003: Unnatural Selection, Conclusion: An alien chieftain returns to his planet with the SG-1 team in a desperate attempt to stop an army of box-shaped robots from annihilating his civilization.

January 17, 2003: Sight Unseen: After returning from an alien archaeological site carrying a glowing artifact, several members of the SG-1 team experience terrifying hallucinations that threaten their sanity.

January 24, 2003: Smoke and Mirrors: O'Neill is accused of being involved in the assassination of the influential Sen. Kinsey while Gen. Hammond investigates a security breach within SG-1.

January 31, 2003: Paradise Lost: While on the lam, Mayborne (Tom McBeath) touches base with Jack and convinces him that he knows the location of a possible alien weapons cache. Jack and the SG-1 team investigate, but can't work around the impenetrable entryway. Mayborne talks his way into helping out — but double-crosses Jack and leaps through an energized gate.

February 7, 2003: Metamorphosis: The SG-1 team squares off against the malevolent Gou'ald matriarch Nirrti, who plots to genetically engineer a race of superhuman warriors.

February 14, 2003: Disclosure: A Gou'ald mothership crash-lands in the Pacific Ocean, forcing the U.S. and Russia to reveal the existence of the Stargate program to the British, French and Chinese.

February 21, 2003: Forsaken: An encounter with the alien survivors of a spaceship crash turns into a deadly scrimmage for the SG-1 crew.

February 28, 2003: The Changling: Daniel Jackson encounters his former SG-1 comrades in a dream scenerio while Teal'C (Christopher Judge, who cowrote the episode) confronts Apophis (Peter Williams).

March 7, 2003: Memento: The only hope the SG-1 team has of returing to Earth is finding a mythical Stargate on a hostile planet where the Prometheus crashlanded after a power failure.

March 14, 2003: Prophecy: SG-1's mission to thwart the plans of a nefarious underlord takes a left turn when Jonas suddenly develops an ability to predict the future.

March 21, 2003: Full Circle: An old comrade warns SG-1 that a Goa'uld sorcerer seeks a potent mystical amulet in the fiery sixth-season finale. The archaeologist-turned-spirit being Daniel Jackson alerts SG-1 leader Jack O'Neill to the peril by cornering him in an elevator. "How are things on the higher plane?" quips O'Neill. But Jackson is in no mood for jokes. He says the evil Anubis covets the Eye of Ra, an ultra-powerful talisman hidden on the planet Abydos. Unable to interfere in mortal affairs, Jackson guides SG-1 to a pyramid where the team tries to locate the Eye during a Goa'uld invasion.

SEASON 7

SEASON 8