| Image
| Title
| Number
| Airdate
| Planet(s)
| Race(s)
| Enemies
|
| "Into the Fire" (Part 2 of 2)
| 301
| June 25, 1999
| Chulak, Earth, Hathor's planet
| Goa'uld, Jaffa, Tok'ra
| Hathor, Trofsky
|
| Discovering that Hathor was behind their capture, O'Neill is implanted with a symbiote while a rescue attempt is made against the base.
|
| "Seth"
| 302
| July 2, 1999
| Earth
| Goa'uld, Tok'ra
| Seth
|
| Jacob Carter comes to Earth to inform the SGC that he believes that the Goa'uld Seth has been hiding on Earth for thousands of years and may still be there.
|
| "Fair Game"
| 303
| July 9, 1999
| Earth
| Asgard, Goa'uld
| Nirrti
|
| O'Neill mysteriously disappears and is informed by the Asgard that the Goa'uld want to make Earth as part of the Protected Planets Treaty however they may have to give up something in return.
|
| "Legacy"
| 304
| July 16, 1999
| Earth, PY3-948
| Linvris
| Goa'uld killing organism
|
| Daniel Jackson begins experiencing hallucinations after returning from a planet where a group of Goa'uld mysteriously died and is isolated and taken to a mental hospital.
|
| "Learning Curve"
| 305
| July 23, 1999
| Earth, Orban
| Orbanian
| N/A
|
| SG-1 make a trade with the Orbanians for a Naquadah generator and are shocked to learn that the person who can teach them how it works is a child. Further investigations reveal that the Orbanians have a strange way of passing on their knowledge.
|
| "Point of View"
| 306
| July 30, 1999
| Earth
| Asgard, Goa'uld, Jaffa
| Apophis (alternate reality)
|
| Samantha Carter and the previously deceased Charles Kawalsky appear at Area 51 from an alternate reality which had just been conquered by the Goa'uld and are seeking refuge.
|
| "Deadman Switch"
| 307
| August 6, 1999
| Planet (Deadman Switch)
| Aris Boch's people, Tok'ra
| Aris Boch
|
| SG-1 is captured by Aris Boch, a bounty hunter working for Sokar, and proves to be almost impossible to escape from. He forces them to help him capture a Goa'uld hiding on their planet, but SG-1 soon discovers they are about to capture a Tok'ra.
|
| "Demons"
| 308
| August 13, 1999
| Medieval planet
| Medieval villagers, Unas
| Unas
|
| SG-1 arrives on a planet where the inhabitants believe they are "demons" because they travelled through the Stargate. Teal'c is accused of witchcraft.
|
| "Rules of Engagement"
| 309
| August 20, 1999
| Apophis' training planet, Earth
| Goa'uld, Jaffa
| SG-X
|
| SG-1's efforts to retrieve an SG team thought to be MIA gets them stunned and captured. They work out that the "SG team" is actually made of slaves who work for Apophis to invade Earth. SG-1 must convince them that Apophis is dead and to stop them from carrying out their mission.
|
| "Forever in a Day"
| 310
| October 8, 1999
| Abydos, Earth, P8X-873
| Abydonian, Goa'uld
| Amaunet
|
| The Abydonians are kidnapped and sent to P8X-873, which is controlled by Amaunet. As several SG teams rescue the Abydonians, Daniel Jackson tries to get to Amaunet and save Sha're. However, it does not end the way Jackson wanted.
|
| "Past and Present"
| 311
| October 15, 1999
| Earth, Vyus
| Vyan
| Ke'ra
|
| SG-1 arrive on Vyus and finds the inhabitants have all lost their memories. The team soon discovers that the culprit is someone they had dealings with before.
|
| "Jolinar's Memories" (Part 1 of 2)
| 312
| October 22, 1999
| Delmak, Earth, Netu
| Goa'uld, Tok'ra
| Bynarr, Sokar
|
| Martouf tells Samantha Carter that her father is captured by Sokar and sent to "hell", which is actually a prison moon Netu terraformed to make it resemble hell. Carter and the rest of her team plan a rescue but are later captured themselves.
|
| "The Devil You Know" (Part 2 of 2)
| 313
| October 29, 1999
| Delmak, Earth, Netu, Vorash
| Goa'uld, Tok'ra
| Apophis, Sokar
|
| SG-1 discovers that Apophis is a prisoner on Netu and is planning a revolt against Sokar. Meanwhile, Teal'c goes to Vorash to seek assistance from the Tok'ra, but they have plans other than rescuing the teams to stop Apophis.
|
| "Foothold"
| 314
| November 5, 1999
| Earth
| Mimic alien
| Mimic alien
|
| Little does SG-1 know, mysterious aliens have taken control of the SGC and are impersonating the personnel. Teal'c and Carter notice and escape. While Teal'c tries to stop them, Carter reluctantly seeks the NID to help stop them
|
| "Pretense"
| 315
| January 19, 2000
| Earth, Tollana
| Goa'uld, Nox, Tollan
| Zipacna
|
| The Tollans ask for SG-1's help when Klorel crashes on their new homeplanet, Tollana. They need SG-1 to help assign Skaara/Klorel's fate. They must perform the triad, where they argue against the Nox and Zipacna of the Goa'uld. Meanwhile, Teal'c and Carter believe that Zipacna is using the triad to distract them whilst his Jaffa work on crippling the Tollan defenses to enslave Tollana.
|
| "Urgo"
| 316
| January 26, 2000
| Earth, P4X-884
| N/A
| N/A
|
| SG-1 explore P4X-884 after noticing it to be a paradise world. However after several hours, they return with no memory whatsoever about what has happened. They soon discover a computer simulation named Urgo trying to influence the team. After they find him annoying, they attempt to stop him but find it very difficult to do so with Urgo doing everything he can to distract them.
|
| "A Hundred Days"
| 317
| February 2, 2000
| Earth, Edora
| Edoran
| N/A
|
| On Edora, SG-1 convinces the peaceful natives that every hundred years the annual fire rain would have a devestating impact on the planet. However during the evacuation process, an asteroid supposedly destroys the gate leaving O'Neill and a few Edorans stranded. Meanwhile, the rest of the team on Earth spends a hundred days trying to reach them again.
|
| "Shades of Grey"
| 318
| February 9, 2000
| Earth, N.I.D Offworld base, PX3-595, Tollana
| Asgard, Tiernod, Tollan
| Harold Maybourne, NID
|
| An angered O'Neill steals a piece of technology from the Tollans after they refuse to give some away to the Tau'ri. Hammond later finds out about this and O'Neill soon resigns. During his retirement he is approached by Harold Maybourne of the NID with the purpose of recruiting him to work for the NID and steal technology from other worlds.
|
| "New Ground"
| 319
| February 16, 2000
| Earth, P2X-416
| Bedrosian, Optrican
| Bedrosians
|
| The Bedrosian military are convinced that SG-1 are working for their enemy, the Optrican. While imprisoned, Teal'c evades capture but is blinded. He relies on an archaeologist to help free the rest of his team.
|
| "Maternal Instinct"
| 320
| February 25, 2000
| Earth, Kheb
| Ancient, Harsesis, Jaffa
| Jaffa
|
| Apophis has taken control of Sokar's forces and is racing the Tau'ri to search for the Harsesis, a child with all the knowledge of the Goa'uld on Kheb. SG-1 gets there first, but it is only a matter of time before the enemy catch up to them.
|
| "Crystal Skull"
| 321
| March 3, 2000
| Earth, P7X-377
| Omeyocan
| N/A
|
| Daniel Jackson stares down on a crystal skull; however, he mysteriously disappears. Jackson tries his best to communicate with them even though he can't be seen. He gets his grandfather, Nicholas Ballard, to help since he claimed to have experienced the same thing.
|
| "Nemesis" (Part 1 of 2)
| 322
| March 8, 2000
| Earth
| Asgard, Replicator
| Replicators
|
| Thor's ship is above Earth and is overrun with an Asgard's nemesis that is even more powerful than the Goa'uld: the Replicators. O'Neill and SG-1 are beamed aboard to find out a way to stop them before they can infest Earth.
|
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