Stargate SG-1 - Season 4 Episodes

Stargate SG-1 - Season 4

Stargate SG-1 - Season 4

Season four of Stargate SG-1, an American-Canadian television series, began airing on June 30, 2000 on Showtime. The fourth season concluded after 22 episodes on February 14, 2001 on British Sky One, which overtook Showtime in mid-season. The series was developed by Brad Wright and Jonathan Glassner. Season four regular cast members include Richard Dean Anderson, Michael Shanks, Amanda Tapping, Christopher Judge, and Don S. Davis.

Stargate SG-1 S4E1
Episode 1

Small Victories (2)

O'Neill and Teal'c risk their lives to keep the Replicator bugs from gaining a foothold on Earth, while Carter helps the Asgard fend off a Replicator invasion.

Stargate SG-1 S4E2
Episode 2

The Other Side

A warring alien race offers to exchange their advanced technology for Earth's help in defeating their enemy.

Stargate SG-1 S4E3
Episode 3

Upgrades

A Tok'ra archaeologist arrives at the SGC with newly discovered technology, giving the SG-1 team superhuman powers.

Stargate SG-1 S4E4
Episode 4

Crossroads

Teal'c is reunited with his lost love -- a woman who claims to have found a way to communicate with her symbiote and defeat the Goa'uld.

Stargate SG-1 S4E5
Episode 5

Divide and Conquer

When a member of the SGC tries to kill a Tok'ra, it is revealed that O'Neill and Carter may be victims of an untraceable form of Goa'uld mind control.

Stargate SG-1 S4E6
Episode 6

Window of Opportunity

O'Neill and Teal'c are caught in a time loop in the SGC, and must relive the same 10 hours over and over again.

Stargate SG-1 S4E7
Episode 7

Watergate

The Russians recover a Stargate from the bottom of the ocean, and turn to the SGC for help when their experiments go awry.

Stargate SG-1 S4E8
Episode 8

The First Ones

Dr. Jackson is taken captive by an Unas while on an archaeological dig. The SGC mounts a rescue operation, but discovers a danger of their own.

Stargate SG-1 S4E9
Episode 9

Scorched Earth

SG-1 is caught in a conflict between two civilizations trying to colonize the same planet.

Stargate SG-1 S4E10
Episode 10

Beneath the Surface

The members of SG-1 are used as forced labor in an underground alien facility after their memories are erased by the ruling elite.

Stargate SG-1 S4E11
Episode 11

Point of No Return

SG-1 investigates a conspiracy theorist who has detailed knowledge of the Stargate program.

Stargate SG-1 S4E12
Episode 12

Tangent

A test gone wrong leaves Jack and Teal'c marooned in space aboard a damaged prototype attack ship

Stargate SG-1 S4E13
Episode 13

The Curse

When his former mentor dies, Dr. Jackson returns to his roots -- and discovers an ancient Egyptian artifact containing a Goa'uld parasite.

Stargate SG-1 S4E14
Episode 14

The Serpent's Venom

SG-1 must stop Apophis and Heru-ur from forming an alliance of their powerful forces, while Teal'c is captured and tortured by the Goa'uld.

Stargate SG-1 S4E15
Episode 15

Chain Reaction

SG-1 must adjust to a new commanding officer when General Hammond steps down -- but O'Neill discovers foul play behind the general's resignation.

Stargate SG-1 S4E16
Episode 16

2010

Ten years into the future, the former members of SG-1 must send a message into the past to prevent the extinction of the human race.

Stargate SG-1 S4E17
Episode 17

Absolute Power

Jackson's teammates notice a disturbing change in him when he is reunited with the Harcesis child and given the Goa'uld genetic memory.

Stargate SG-1 S4E18
Episode 18

The Light

SG-1 finds a deserted Goa'uld palace, where a beautiful device causes suicidal tendencies.

Stargate SG-1 S4E19
Episode 19

Prodigy

Carter must help keep a promising young cadet from throwing away a future at the SGC. O'Neill and Teal'c encounter a dangerous life form at an offworld research base.

Stargate SG-1 S4E20
Episode 20

Entity

The SGC is invaded by an alien life force that takes up residence in the base computer system -- and in Major Carter.

Stargate SG-1 S4E21
Episode 21

Double Jeopardy

SG-1 returns to Juna, formerly known as PX3-989, a planet they -- or rather, robot duplicates of them -- helped free from Goa'uld enslavement. Now the natives face the vengeful system lord Cronos. SG-1 is prepared to lead the planet's inhabitants against him, but the people are not eager to trust SG-1, who had told them that they would be safe from the Goa'uld if they buried their stargate.

Stargate SG-1 S4E22
Episode 22

Exodus (1)

SG-1 pays a visit to the Tok'ra homeworld. They arrive at Vorash on Cronos' mothership -- one of the spoils they claimed following the their recent battle with him. At a meeting with Vorash's High Council, it is revealed that SG-1 intends to lend the Tok'ra the enormous ship in order to help facilitate the Tok'ra's move to a new planet.