第 4 季 共 22 集
播出时间：2000年7月1日
第 1 集 Small Victories (2)
播出时间：2000年7月1日
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.
第 2 集 The Other Side
播出时间：2000年7月8日
A warring alien race offers to exchange their advanced technology for Earth's help in defeating their enemy.
第 3 集 Upgrades
播出时间：2000年7月15日
A Tok'ra archaeologist arrives at the SGC with newly discovered technology, giving the SG-1 team superhuman powers.
第 4 集 Crossroads
播出时间：2000年7月22日
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.
第 5 集 Divide and Conquer
播出时间：2000年7月29日
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.
第 6 集 Window of Opportunity
播出时间：2000年8月5日
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.
第 7 集 Watergate
播出时间：2000年8月12日
The Russians recover a Stargate from the bottom of the ocean, and turn to the SGC for help when their experiments go awry.
第 8 集 The First Ones
播出时间：2000年8月19日
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.
第 9 集 Scorched Earth
播出时间：2000年8月26日
SG-1 is caught in a conflict between two civilizations trying to colonize the same planet.
第 10 集 Beneath the Surface
播出时间：2000年9月2日
The members of SG-1 are used as forced labor in an underground alien facility after their memories are erased by the ruling elite.
第 11 集 Point of No Return
播出时间：2000年9月9日
SG-1 investigates a conspiracy theorist who has detailed knowledge of the Stargate program.
第 12 集 Tangent
播出时间：2000年9月16日
A test gone wrong leaves Jack and Teal'c marooned in space aboard a damaged prototype attack ship
第 13 集 The Curse
播出时间：2000年9月23日
When his former mentor dies, Dr. Jackson returns to his roots -- and discovers an ancient Egyptian artifact containing a Goa'uld parasite.
第 14 集 The Serpent's Venom
播出时间：2000年9月30日
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.
第 15 集 Chain Reaction
播出时间：2001年1月6日
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.
第 16 集 2010
播出时间：2001年1月13日
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.
第 17 集 Absolute Power
播出时间：2001年1月20日
Jackson's teammates notice a disturbing change in him when he is reunited with the Harcesis child and given the Goa'uld genetic memory.
第 18 集 The Light
播出时间：2001年1月27日
SG-1 finds a deserted Goa'uld palace, where a beautiful device causes suicidal tendencies.
第 19 集 Prodigy
播出时间：2001年2月3日
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.
第 20 集 Entity
播出时间：2001年2月10日
The SGC is invaded by an alien life force that takes up residence in the base computer system -- and in Major Carter.
第 21 集 Double Jeopardy
播出时间：2001年2月17日
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.
第 22 集 Exodus (1)
播出时间：2001年2月24日
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.
