| # |
# |
Title |
Directed by |
Written by |
Original airdate |
| 89 |
501 |
"Enemies (Part 2)" |
Martin Wood |
Brad Wright, Robert C. Cooper, Joseph Mallozzi and Paul Mullie |
June 29, 2001 (Showtime) |
| In a distant galaxy, the team is captured by Apophis, who has brainwashed Teal'c. Replicators overrun Apophis' ship and SG-1 escapes before he dies as the ship crashes into Delmak. |
| 90 |
502 |
"Threshold (Part 3)" |
Peter DeLuise |
Brad Wright |
July 6, 2001 (Showtime) |
| To end Teal'c's newly formed loyalty to Apophis, Bra'tac uses an old Jaffa ritual that will either bring Teal'c back or kill him. Now Teal'c must relive his memories of being in the service of Apophis and realise that Apophis is a false god. |
| 91 |
503 |
"Ascension" |
Martin Wood |
Robert C. Cooper |
July 13, 2001 (Showtime) |
| After returning from Velona (P3X-636), a planet full of ruins, Carter is visited by a mysterious young man named Orlin who can walk through solid objects. But everyone believes that she is seeing things. It later turns out that the Ancients destroyed Velona and left Orlin behind as punishment after he had provided the Velonans with an advanced weapon in their fight against the Goa'uld. |
| 92 |
504 |
"The Fifth Man" |
Peter DeLuise |
Joseph Mallozzi & Paul Mullie |
July 20, 2001 (Showtime) |
| O'Neill remains on a planet designated P7S-441 to protect Lieutenant Tyler, a fifth member of SG-1 whom only the other members of SG-1 can recall. He turns out be a Reol, a race of lanky humanoids nearly hunted to extinction by the Goa'uld. They naturally secrete a chemical that implants false memories and illusions in others. |
| 93 |
505 |
"Red Sky" |
Martin Wood |
Ron Wilkerson |
July 27, 2001 (Showtime) |
After Carter overrides some of the security dialing protocols on the Stargate, SG-1 travels to K'Tau (P39-865,      ) and discovers that the sun has been shifted to the infrared end of the spectrum. All life on the planet is doomed, and SG-1 are responsible. The planet's inhabitants are worshippers of the Asgard, but the Asgard refuse to help. |
| 94 |
506 |
"Rite of Passage" |
Peter DeLuise |
Heather E. Ash |
August 3, 2001 (Showtime) |
| Dr. Fraiser's adopted daughter, Cassandra, develops telekinetic abilities, but the strain of producing so much energy is causing multiple organ failure. SG-1 must make a deal with a forgotten enemy in order to save her - but at a terrible price. |
| 95 |
507 |
"Beast of Burden" |
Martin Wood |
Peter DeLuise |
August 10, 2001 (Showtime) |
| Chaka, the Unas whom Dr. Jackson befriended, has been kidnapped and taken to a planet where humans use Unases as slaves. Jackson wants to rescue Chaka, but O'Neill is reluctant to interfere. |
| 96 |
508 |
"The Tomb" |
Peter DeLuise |
Joseph Mallozzi & Paul Mullie |
August 17, 2001 (Showtime) |
SG-1 gets trapped in an ancient ziggurat on P2X-338 (     ) along with a Russian team and an alien creature possessed by a Goa'uld. |
| 97 |
509 |
"Between Two Fires" |
William Gereghty |
Ron Wilkerson |
August 24, 2001 (Showtime) |
| The Tollan, in a highly unusual change of policy, agree to share advanced technology with Earth. But SG-1 soon learns that there's something else going on. |
| 98 |
510 |
"2001" |
Peter DeLuise |
Brad Wright |
August 31, 2001 (Showtime) |
SG-1 discovers an agricultural planet named Volia (P3A-194,      ), whose inhabitants introduce them to their more technologically advanced neighbours, the Aschen, who propose an alliance with Earth. Volia was once industrialized, but the Aschen covertly sterilized much of their population using a cure for a plague as pretense. By the time the Volians realized what was happening and fought back, it was too late. After research by Daniel Jackson and Teal'c reveals the Aschen to be the civilization whose gate address they forbade themselves from dialing ("2010"), Earth breaks off contact, leaving the Aschen with an innocuous database of catastrophically dangerous Stargate addresses, including the black hole planet from season 2's "A Matter of Time". |
| 99 |
511 |
"Desperate Measures" |
William Gereghty |
Joseph Mallozzi & Paul Mullie |
September 7, 2001 (Showtime) |
| Carter is kidnapped by a dying millionaire, forcing O'Neill to team up with Harry Maybourne in order to find her. |
| 100 |
512 |
"Wormhole X-Treme!" |
Peter DeLuise |
Brad Wright, Joseph Mallozzi and Paul Mullie |
September 8, 2001 (Showtime) |
| When Stargate Command learns of a television show whose premise closely resembles its operations, SG-1 investigates. They find that an alien named Martin Lloyd ("Point of No Return") is giving the producers their ideas. |
| 101 |
513 |
"Proving Ground" |
Andy Mikita |
Ron Wilkerson |
March 8, 2002 (Sky One) |
| SG-1 is running training simulations for a group of new recruits. Things begin to get more serious when aliens invade. |
| 102 |
514 |
"48 Hours" |
Peter F. Woeste |
Robert C. Cooper |
March 15, 2002 (Sky One) |
Returning from a mission on P3X-116 (     , Teal'c fails to make it through the Stargate before it deactivates. If the wormhole is re-opened, his pattern will be lost forever. Daniel must make a deal with the Russians for help. Carter must collaborate with Dr. Rodney McKay. |
| 103 |
515[1] |
"Summit (Part 1)" |
Martin Wood |
Joseph Mallozzi & Paul Mullie |
March 22, 2002 (Sky One) |
| There is a truce among the Goa'uld and the System Lords meet on a heavily guarded space station. The Tok'ra plan to kill them all, but require a human who can speak fluent Goa'uld and Daniel is the only qualified candidate. The Tok'ra create a version of the Reol chemical ("The Fifth Man") for the undercover mission. Meanwhile, Anubis attacks an outpost of Kali on the planet Cerador, destroying two motherships. Lord Zipacna attacks Revanna, the site of the main Tok'ra base after Vorash, under orders from Anubis. |
| 104 |
516[1] |
"Last Stand (Part 2)" |
Martin Wood |
Robert C. Cooper |
March 29, 2002 (Sky One) |
| A powerful System Lord shows himself for the first time in a thousand years and offers to destroy the Tau'ri and Tok'ra. Meanwhile, SG-1 and Lt. Elliot/Lantash are trying to escape the Tok'ra base. |
| 105 |
517[1] |
"Fail Safe" |
Andy Mikita |
Joseph Mallozzi & Paul Mullie |
April 5, 2002 (Sky One) |
| SG-1 must stop a rogue asteroid on a collision course with Earth using their Goa'uld cargo ship. |
| 106 |
518 |
"The Warrior" |
Peter DeLuise |
Christopher Judge |
April 12, 2002 (Sky One) |
The Jaffa rebellion has a new leader named Kytano, who seems almost too good to be true. SG-1 visits Kytano's Jaffa camp on the planet Cal Mah (meaning "sanctuary") to negotiate an alliance. However, Kytano sends rebel Jaffa on a suicide mission to      , a stronghold of Nirrti, and when Kytano sends Teal'c on a suicide mission against the Goa'uld system lord Yu, he finds that the new leader isn't what he seems. |
| 107 |
519 |
"Menace" |
Martin Wood |
James Tichenor |
April 26, 2002 (Sky One) |
| The team finds an android that somehow managed to survive a Replicator attack. They learn she is the mother of all Replicators, but has the mentality of a young child. |
| 108 |
520 |
"The Sentinel" |
Peter DeLuise |
Ron Wilkerson |
May 3, 2002 (Sky One) |
| The Latonans are a once-advanced race that abandoned technology to focus on mental development. Their homeworld Latona (P2A-018) is defended by a 500-year-old device called the Sentinel, which was inadvertently deactivated by rogue NID operatives seeking to reverse-engineer it. With Latona being invaded by the Goa'uld Svarog, SG-1 brings the NID agents (from the season 3 episode "Shades of Grey") with them to repair the Sentinel and save the Latonans from the Goa'uld. |
| 109 |
521 |
"Meridian" |
Will Waring |
Robert C. Cooper |
May 10, 2002 (Sky One) |
| Daniel incurs lethal radiation exposure when he prevents a potentially cataclysmic accident in a weapons laboratory on the planet Langara (P9Y-4C3). While the alien government responsible for the lab accuses him of attempting to sabotage their research, the Kelownan Jonas Quinn tries to negotiate with SG-1. |
| 110 |
522 |
"Revelations" |
Martin Wood |
Joseph Mallozzi & Paul Mullie |
May 17, 2002 (Sky One) |
| An Asgard scientist Heimdall is stranded on Adara II, a planet under attack by the Goa'uld. As the Asgard have no spare ships, they ask Stargate Command to help, using their salvaged Goa'uld cargo ship. |