Season 4

2000 · 22 episodes · 16h 8m in all · 7.6/10

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.

1. Small Victories (2)
30 Jun 2000 · 44 min · 7.9/10
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.
2. The Other Side
7 Jul 2000 · 44 min · 7.7/10
A warring alien race offers to exchange their advanced technology for Earth's help in defeating their enemy.
3. Upgrades
14 Jul 2000 · 44 min · 8.5/10
A Tok'ra archaeologist arrives at the SGC with newly discovered technology, giving the SG-1 team superhuman powers.
4. Crossroads
21 Jul 2000 · 44 min · 7.2/10
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.
5. Divide and Conquer
28 Jul 2000 · 44 min · 8.1/10
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.
6. Window of Opportunity
4 Aug 2000 · 44 min · 9.2/10
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.
7. Watergate
11 Aug 2000 · 44 min · 7.4/10
The Russians recover a Stargate from the bottom of the ocean, and turn to the SGC for help when their experiments go awry.
8. The First Ones
18 Aug 2000 · 44 min · 7.5/10
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.
9. Scorched Earth
25 Aug 2000 · 44 min · 7.3/10
SG-1 is caught in a conflict between two civilizations trying to colonize the same planet.
10. Beneath the Surface
1 Sept 2000 · 44 min · 7.3/10
The members of SG-1 are used as forced labor in an underground alien facility after their memories are erased by the ruling elite.
11. Point of No Return
8 Sept 2000 · 44 min · 6.9/10
SG-1 investigates a conspiracy theorist who has detailed knowledge of the Stargate program.
12. Tangent
15 Sept 2000 · 44 min · 7.6/10
A test gone wrong leaves Jack and Teal'c marooned in space aboard a damaged prototype attack ship
13. The Curse
22 Sept 2000 · 44 min · 7.3/10
When his former mentor dies, Dr. Jackson returns to his roots -- and discovers an ancient Egyptian artifact containing a Goa'uld parasite.
14. The Serpent's Venom
29 Sept 2000 · 44 min · 7.5/10
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.
15. Chain Reaction
5 Jan 2001 · 44 min · 8.0/10
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.
16. 2010
12 Jan 2001 · 44 min · 8.2/10
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.
17. Absolute Power
19 Jan 2001 · 44 min · 7.5/10
Jackson's teammates notice a disturbing change in him when he is reunited with the Harcesis child and given the Goa'uld genetic memory.
18. The Light
26 Jan 2001 · 44 min · 7.0/10
SG-1 finds a deserted Goa'uld palace, where a beautiful device causes suicidal tendencies.
19. Prodigy
2 Feb 2001 · 44 min · 7.2/10
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.
20. Entity
9 Feb 2001 · 44 min · 6.9/10
The SGC is invaded by an alien life force that takes up residence in the base computer system -- and in Major Carter.
21. Double Jeopardy
16 Feb 2001 · 44 min · 7.5/10
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.
22. Exodus (1)
23 Feb 2001 · 44 min · 8.1/10
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.