Stargate SG-1 — Season 4
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.
01 Small Victories (2)
Jun 30, 200044m★ 7.8
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.
02 The Other Side
Jul 7, 200044m★ 7.7
A warring alien race offers to exchange their advanced technology for Earth's help in defeating their enemy.
03 Upgrades
Jul 14, 200044m★ 8.5
A Tok'ra archaeologist arrives at the SGC with newly discovered technology, giving the SG-1 team superhuman powers.
04 Crossroads
Jul 21, 200044m★ 7.2
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.
05 Divide and Conquer
Jul 28, 200044m★ 8.2
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.
06 Window of Opportunity
Aug 4, 200044m★ 9.3
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.
07 Watergate
Aug 11, 200044m★ 7.4
The Russians recover a Stargate from the bottom of the ocean, and turn to the SGC for help when their experiments go awry.
08 The First Ones
Aug 18, 200044m★ 7.5
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.
09 Scorched Earth
Aug 25, 200044m★ 7.3
SG-1 is caught in a conflict between two civilizations trying to colonize the same planet.
10 Beneath the Surface
Sep 1, 200044m★ 7.3
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
Sep 8, 200044m★ 6.9
SG-1 investigates a conspiracy theorist who has detailed knowledge of the Stargate program.
12 Tangent
Sep 15, 200044m★ 7.6
A test gone wrong leaves Jack and Teal'c marooned in space aboard a damaged prototype attack ship
13 The Curse
Sep 22, 200044m★ 7.3
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
Sep 29, 200044m★ 7.5
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
Jan 5, 200144m★ 7.9
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
Jan 12, 200144m★ 8.2
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
Jan 19, 200144m★ 7.5
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
Jan 26, 200144m★ 6.9
SG-1 finds a deserted Goa'uld palace, where a beautiful device causes suicidal tendencies.
19 Prodigy
Feb 2, 200144m★ 7.1
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
Feb 9, 200144m★ 6.9
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
Feb 16, 200144m★ 7.6
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)
Feb 23, 200144m★ 8.1
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.