| # |
# |
Title |
Directed by |
Written by |
Original airdate |
| 67 |
401 |
"Small Victories (Part 2)" |
Martin Wood |
Robert C. Cooper |
June 30, 2000 (Showtime) |
| The Replicator on Earth has reproduced and taken over a submarine; O'Neill and Teal'c neutralise the threat. Carter goes with Thor to defend the Asgard homeworld from the Replicators. They use the Asgard's newest ship (named the O'Neill) to lure the Replicators into hyperspace, where the ship is blown up. |
| 68 |
402 |
"The Other Side" |
Peter DeLuise |
Brad Wright |
July 7, 2000 (Showtime) |
Humans on the planet Euronda (      ) contact Stargate Command for help; they are fighting losing war against an enemy they call the "Breeders" and have run out of food and fuel supplies. SG-1 travels to Euronda and make an alliance to trade heavy water for advanced technology to combat the Goa'uld. Daniel feels that the people are not telling them everything, but O'Neill does not want to jeopardize their alliance. SG-1 eventually discovers that the "Breeders" are so termed because the Eurondans see them as reproducing indiscriminately with "no regard for genetic purity", and that it was the Eurondans who poisoned their planet's atmosphere in an attempt to commit genocide. Earth withdraws its support, and O'Neill uses a Eurondan fighter to assist a Breeder attack on the Eurondan bunker. |
| 69 |
403 |
"Upgrades" |
Martin Wood |
David Rich |
July 14, 2000 (Showtime) |
The Tok'ra Anise gives O'Neill, Carter, and Daniel Atanik arm devices that greatly increase their strength and speed. But the devices rely on a virus that is eventually neutralized by the human immune system, causing the members of SG-1 to lose the strength they gained. However, they don't realize this until they are on a mission on PX9-757 (      ), a planet where Apophis builds new prototype mothership. |
| 70 |
404 |
"Crossroads" |
Peter DeLuise |
Katharyn Powers |
July 21, 2000 (Showtime) |
| The SGC is visited by Shan'auc, a female Jaffa who has discovered how to communicate with her larval Goa'uld symbiote and claims that she has information that could destroy the Goa'uld. |
| 71 |
405 |
"Divide and Conquer" |
Martin Wood |
Tor Alexander Valenza |
July 28, 2000 (Showtime) |
| The Goa'uld can impose subconscious programming on humans. The Tok'ra have a test to detect the programming and when it is applied to the staff of Stargate Command, Carter and O'Neill are found to be affected. |
| 72 |
406 |
"Window of Opportunity" |
Peter DeLuise |
Joseph Mallozzi & Paul Mullie |
August 4, 2000 (Showtime) |
After an encounter with an Ancient time device on P4X-639 (  ), O'Neill and Teal'c get trapped in a time loop that only they know about. |
| 73 |
407 |
"Watergate" |
Martin Wood |
Robert C. Cooper |
August 11, 2000 (Showtime) |
| The Russians have been using the second Stargate in secret, but after dialing a world that is completely under water, they lose contact with their Stargate facility and approach Stargate Command for help. The reason is discovered to be microscopic beings that live in, and control, water. They broke free and attempt to return home through the Stargate by controlling human bodies and emitting enough energy to keep a Stargate open indefinitely. |
| 74 |
408 |
"The First Ones" |
Peter DeLuise |
Peter DeLuise |
August 18, 2000 (Showtime) |
| While helping with the excavation of fossilized Goa'uld on P3X-888, the homeworld of the Goa'uld and the Unas, Daniel Jackson is captured by the Unas Chaka. The rest of SG-1 tries to find him. |
| 75 |
409 |
"Scorched Earth" |
Martin Wood |
Joseph Mallozzi & Paul Mullie |
August 25, 2000 (Showtime) |
| Earth resettles a group of Enkaran refugees, a race of humans who have become specifically adapted to their homeworld and thus require exact environmental conditions, to another planet, but an alien spaceship is transforming the new planet into a hostile environment. The ship preserves elements of the Gadmeer civilization, a non-humanoid sulfur-based race that once faced extinction in a war, and they cannot restart their civilization on another planet. SG-1 eventually brokers a deal by which the Gadmeer ship would transport the Enkarans to their original homeworld before resuming its work. |
| 76 |
410 |
"Beneath the Surface" |
Peter DeLuise |
Heather E. Ash |
September 1, 2000 (Showtime) |
| The members of SG-1 have had their memories altered and been put to work in an underground industrial complex. They must recover their memories in order to escape. |
| 77 |
411 |
"Point of No Return" |
William Gereghty |
Joseph Mallozzi & Paul Mullie |
September 8, 2000 (Showtime) |
An odd man called Martin Lloyd has inexplicable knowledge of the Stargate and claims that he is from outer space. He remembers his home address (    ). He turns out to belong to a small group of men who deserted their homeworld after losing a war against the Goa'uld. After failing to find anything but more hardship, they chose to desert the rest of their race and hide out on Earth. |
| 78 |
412 |
"Tangent" |
Peter DeLuise |
Michael Cassutt |
September 15, 2000 (Showtime) |
| Teal'c and O'Neill test-fly the first experimental aircraft based on combined Earth and Goa'uld technologies, but soon someone else takes control of the X-301. Sam and Daniel enlist Jacob/Selmak's help to rescue them. |
| 79 |
413 |
"The Curse" |
Andy Mikita |
Joseph Mallozzi & Paul Mullie |
September 22, 2000 (Showtime) |
| Daniel's old professor has died. Daniel goes to the funeral and discovers a controversy surrounding the professor's death. SG-1 discovers that a Goa'uld may have escaped from an ancient canopic jar the professor's team was studying. |
| 80 |
414 |
"The Serpent's Venom" |
Martin Wood |
Peter DeLuise |
September 29, 2000 (Showtime) |
| The Tok'ra and Stargate Command want to sabotage a meeting of Heru'ur and Apophis, who want to form an alliance on neutral ground on the homeworld of the extinct Tobin race, decendends of the Phoenicians. The planet is surrounded by a minefield. SG-1 discovers Heru'ur has captured Teal'c and intends to use him as a peace offering. Jacob/Selmak plans to meet Teal'c and Rak'nor, a supposed friend of Teal'c's on the inside, on the third moon of the planet Tichenor. |
| 81 |
415 |
"Chain Reaction" |
Martin Wood |
Joseph Mallozzi & Paul Mullie |
January 5, 2001 (Sky One) |
| Hammond abruptly resigns as head of the SGC, and is replaced by General Bauer. O'Neill suspects there is more to it than Hammond will admit and refuses to let the matter rest. General Bauer sends an SG team to the Goa'uld planet P3S-452 obtain naqahdah. |
| 82 |
416 |
"2010" |
Andy Mikita |
Brad Wright |
January 12, 2001 (Sky One) |
| In an alternate timeline, Earth has defeated the Goa'uld with the help of the Aschen, a bland and humorless advanced people from an world designated P4C-970. Earth discovers too late that the Aschen plan to depopulate the planet by secretly sterilizing much of the population through life-extending drugs. Thus, the former members of SG-1 sacrifice their lives to send a warning back in time to themselves not to contact the Aschen homeworld P4C-970. The season 5 episode "2001 (Stargate SG-1)" resumes this story. |
| 83 |
417 |
"Absolute Power" |
Peter DeLuise |
Robert C. Cooper |
January 19, 2001 (Sky One) |
| The Harcesis has come to visit the SGC and puts Jackson in a coma-like state. Jackson experiences what it means to have all the knowledge of the Goa'uld. |
| 84 |
418 |
"The Light" |
Peter Woeste |
James Phillips |
January 26, 2001 (Sky One) |
| SG-1 discovers a world abandoned by the Goa'uld where there is a room with a beautiful, mesmerizing light display. But the light may have an insidious effect. |
| 85 |
419 |
"Prodigy" |
Peter DeLuise |
Brad Wright, Joseph Mallozzi and Paul Mullie |
February 5, 2001 (Sky One) |
| Carter meets a brilliant USAF cadet while lecturing at the Air Force Academy, but the cadet has a problem with authority. Carter decides to show her there are possibilities she isn't aware of. On an off-world mission on M4C-862, a moon 42,000 light-years from Earth, energy-based creatures take a dislike to the Tau'ri and Carter and the cadet must work on a solution to get everyone home. |
| 86 |
420 |
"Entity" |
Allan Lee |
Peter DeLuise |
February 9, 2001 (Sky One) |
Stargate Command sends a probe through the Stargate to P9C-372 (   ), a world inhabited by electronic lifeforms. The base computer system is compromised by what is apparently a very advanced computer virus, which eventually displaces Samantha Carter's mind from her body. |
| 87 |
421 |
"Double Jeopardy" |
Michael Shanks |
Robert C. Cooper |
February 16, 2001 (Sky One) |
| After Cronus's army captures the android counterparts of SG-1 ("Tin Man") on the planet Juna (P3X-729, ), the members of the real SG-1 must work with their robot duplicates to free the planet. |
| 88 |
422 |
"Exodus (Part 1)" |
David Warry-Smith |
Joseph Mallozzi & Paul Mullie |
February 23, 2001 (Sky One) |
| Apophis is on his way to Vorash, the planet the Tok'ra are using as a base. Carter and Jacob/Selmak attempt to wipe out Apophis' fleet by sending a Stargate linked to a black hole into the local sun. |
United States, 
Canada
) contact Stargate Command for help; they are fighting losing war against an enemy they call the "Breeders" and have run out of food and fuel supplies. SG-1 travels to Euronda and make an alliance to trade heavy water for advanced technology to combat the Goa'uld. Daniel feels that the people are not telling them everything, but O'Neill does not want to jeopardize their alliance. SG-1 eventually discovers that the "Breeders" are so termed because the Eurondans see them as reproducing indiscriminately with "no regard for genetic purity", and that it was the Eurondans who poisoned their planet's atmosphere in an attempt to commit genocide. Earth withdraws its support, and O'Neill uses a Eurondan fighter to assist a Breeder attack on the Eurondan bunker. 
), a planet where Apophis builds new prototype mothership. 
). He turns out to belong to a small group of men who deserted their homeworld after losing a war against the Goa'uld. After failing to find anything but more hardship, they chose to desert the rest of their race and hide out on Earth. 
