
Season 4 (2000)
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. A warring alien race offers to exchange their advanced technology for Earth's help in defeating their enemy.
Episodes: 22
Star Cast: Richard Dean Anderson , Amanda Tapping , Christopher Judge , Michael Shanks ,
Episodes List

Ep.1 Small Victories (2)
Air Date: 2000-06-30
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.

Ep.2 The Other Side
Air Date: 2000-07-07
A warring alien race offers to exchange their advanced technology for Earth's help in defeating their enemy.

Ep.3 Upgrades
Air Date: 2000-07-14
A Tok'ra archaeologist arrives at the SGC with newly discovered technology, giving the SG-1 team superhuman powers.

Ep.4 Crossroads
Air Date: 2000-07-21
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.

Ep.5 Divide and Conquer
Air Date: 2000-07-28
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.

Ep.6 Window of Opportunity
Air Date: 2000-08-04
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.

Ep.7 Watergate
Air Date: 2000-08-11
The Russians recover a Stargate from the bottom of the ocean, and turn to the SGC for help when their experiments go awry.

Ep.8 The First Ones
Air Date: 2000-08-18
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.

Ep.9 Scorched Earth
Air Date: 2000-08-25
SG-1 is caught in a conflict between two civilizations trying to colonize the same planet.

Ep.10 Beneath the Surface
Air Date: 2000-09-01
The members of SG-1 are used as forced labor in an underground alien facility after their memories are erased by the ruling elite.

Ep.11 Point of No Return
Air Date: 2000-09-08
SG-1 investigates a conspiracy theorist who has detailed knowledge of the Stargate program.

Ep.12 Tangent
Air Date: 2000-09-15
A test gone wrong leaves Jack and Teal'c marooned in space aboard a damaged prototype attack ship

Ep.13 The Curse
Air Date: 2000-09-22
When his former mentor dies, Dr. Jackson returns to his roots -- and discovers an ancient Egyptian artifact containing a Goa'uld parasite.

Ep.14 The Serpent's Venom
Air Date: 2000-09-29
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.

Ep.15 Chain Reaction
Air Date: 2001-01-05
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.

Ep.16 2010
Air Date: 2001-01-12
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.

Ep.17 Absolute Power
Air Date: 2001-01-19
Jackson's teammates notice a disturbing change in him when he is reunited with the Harcesis child and given the Goa'uld genetic memory.

Ep.18 The Light
Air Date: 2001-01-26
SG-1 finds a deserted Goa'uld palace, where a beautiful device causes suicidal tendencies.

Ep.19 Prodigy
Air Date: 2001-02-02
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.

Ep.20 Entity
Air Date: 2001-02-09
The SGC is invaded by an alien life force that takes up residence in the base computer system -- and in Major Carter.

Ep.21 Double Jeopardy
Air Date: 2001-02-16
SG-1 must rescue an alien world from the Goa'uld -- with help from an unexpected source. Teal'c seeks revenge on the System Lord Cronus for the murder of his father.

Ep.22 Exodus (1)
Air Date: 2001-02-23
SG-1 helps to evacuate the Tok'ra to a new base -- but matters are complicated when a spy reveals their location to Apophis. The team attempts a daring plan to take out the Goa'uld's powerful fleet.