SG-1 Season 4

Template:SG1-4 Season four of Stargate SG-1 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.

Cast

Main characters

• Richard Dean Anderson as Colonel Jack O'Neill (22/22 episodes)
• Michael Shanks as Dr. Daniel Jackson (21/22 episodes)
• Amanda Tapping as Major Samantha Carter (22/22 episodes)
• Christopher Judge as Teal'c (22/22 episodes)
• Don S. Davis as Major General George S. Hammond (21/22 episodes)

Apophis was the main Antagonist of this season

Recurring characters

• Teryl Rothery as Dr. Janet Fraiser (12/22 episodes)
• Gary Jones as MSgt. Walter Harriman (11/22 episodes)
• Dan Shea as MSgt. Sylvester Siler (8/22 episodes)
• Peter Williams as Apophis (3/22 episodes)
• Carmen Argenziano as Jacob Carter/Selmak (3/22 episodes)
• Vanessa Angel as Anise/Freya (3/22 episodes)
• Russell Ferrier as Major Michael Griff (3/22 episodes)
• Colin Cunningham as Major Paul Davis (3/22 episodes)
• Daniel Bacon as SMSgt. Russell Benson (3/22 episodes)
• Ronny Cox as Senator Robert Kinsey (2/22 episodes)
• Peter Wingfield as Tanith (2/22 episodes)
• Tom McBeath as Harold Maybourne (2/22 episodes)
• Ron Halder as Cronus (2/22 episodes)
• Steven Williams as Lt. General Maurice Vidrine (2/22 episodes)

Broadcasted episodes

Image	Title	Number	Airdate	Planet(s)	Race(s)	Enemies
File:Stargate SG-1 - 04x01.jpg	"Small Victories (Part 2 of 2)"	401	June 30, 2000	Earth, Othala	Asgard, Replicator	Replicators
	Despite the defeat of the Replicators, some survived the crash and managed to infest a Russian Foxtrot-class submarine to replicate a new army. Meanwhile, Thor returns to Earth and wants Major Samantha Carter's assistance to defeat the Replicators from taking over Othala, by using "stupid ideas" as a means of stopping them.
	"The Other Side"	402	July 7, 2000	Earth, Euronda	Eurondan, Breeder	Alar, Farrell
	The Eurondans, who have an ancestral history with the Tau'ri, contact Earth and request their assistance to win a generations-long war. However, the lack of intel about their "enemy" and their shady behavior arouses a lot of suspicion from Dr. Daniel Jackson.
	"Upgrades"	403	July 14, 2000	Earth, PX9-757	Atanik, Jaffa, Tok'ra	Serpent Guards
	Anise of the Tok'ra arrives on Earth to test Atanik armbands on SG-1, and notices that they cause the team to be physically augmented. With their new powers evident, SG-1 urges Major General George S. Hammond to let them fight the Goa'uld with them. However, the armbands also make the team more irrational.
	"Crossroads"	404	July 21, 2000	Earth, Vorash	Chulakian, Goa'uld, Tok'ra	Tanith
	Shan'auc, one of Teal'c's old flames and priestess of Chulak claims to have taught her symbiote to despise the Goa'uld. The Tok'ra seem convinced of this, but there is still a reasonable amount of doubt from the others.
	"Divide and Conquer"	405	July 28, 2000	Earth, P6Y-325, Vorash	Tok'ra	Za'tarc, Martouf
	The Tok'ra and Tau'ri plan a treaty for their alliance. Unfortunately, mind-controlled assassins who work for the Goa'uld, known as Za'tarcs are among them. Anise invented a device, similar to a lie detector, to determine who is a Za'tarc, but can hardly believe when Major Samantha Carter and Colonel Jack O'Neill are confirmed to be Za'tarcs.
File:Windowofopportunitystargate.JPG	"Window of Opportunity"	406	August 4, 2000	Earth, P4X-639	N/A	Malakai
	On a routine mission to P4X-639, SG-1 meets an alien archeologist Malakai operating an Ancient device. Malakai has his own motives and causes a time loop, where only Colonel Jack O'Neill and Teal'c notice. Furthermore, convincing the rest they are trapped in a time loop and that they have to return to the planet to stop it proves difficult when the same few hours from breakfast to the mission is repeated over and over again.
File:Watergatestargate.jpg	"Watergate"	407	August 11, 2000	Earth, Water planet	Water-based life form	Water-based life form
	Stargate Command is unable to activate their Stargate. They soon discover that the Russians have their hands on one, after they recovered one from the wreckage of the crashed Biliskner. Another problem is that their Stargate is somehow still activated indefinitely.
	"The First Ones"	408	August 18, 2000	Earth, P3X-888	Unas	Robert Rothman, Unas
	Dr. Daniel Jackson is captured and taken prisoner by an Unas later to be known as Chaka on P3X-888. While he learns more about the Unas, the rest of SG-1 and other teams plan a rescue operation. However, Teal'c stops them, after he senses that one of the team members are taken host by a Goa'uld.
	"Scorched Earth"	409	August 25, 2000	Enkaran home world, P5S-381, Earth	Gadmeer, Enkaran	N/A
	SG-1 has relocated the Enkarans to a planet suitable for them. However, at the same time, the Gadmeer, a sulfur-based lifelform also claims the planet, by igniting the planet with their terraformer.
File:Beneath The Surface.jpeg	"Beneath the Surface"	410	September 1, 2000	P3R-118, Earth	N/A	Calder
	Major Samantha Carter, Dr. Daniel Jackson, Colonel Jack O'Neill and Teal'c are somehow working as miners on the ice-age ridden planet of P3R-118 as Thera, Karlin, Jonah and Tor respectively. Meanwhile, the SG teams are searching all over the ice covered planet for any signs of SG-1, who have gone missing.
File:Point of No Return.png	"Point of No Return"	411	September 8, 2000	Earth, Martin's world	Martin's people	Peter Tanner
	Stargate Command is contacted by Martin Lloyd, who needs to speak to Colonel Jack O'Neill. SG-1 goes to Montana to see who he is, as he claims to be from outer space, and insists that a crashed spaceship is nearby. Meanwhile, more of his people wish to silence him.
File:Tangent (Stargate SG-1).jpg	"Tangent"	412	September 15, 2000	Earth, Jupiter	N/A	N/A
	Teal'c and Colonel Jack O'Neill test a Death Glider they acquired from Apophis in the past. However, the Glider has a life of its own, when a Recall device installed by Apophis sends the ship back to Chulak, which will take several hundred years at their current speed, and they only have a few days of oxygen.
	"The Curse"	413	September 22, 2000	Earth	Goa'uld	Osiris
	After Dr. Daniel Jackson learns that his old archaeology professor dies in an explosion, he soon suspects that it may not be an accident, and that one of the professor's colleagues are responsible for his death. Meanwhile, he finds out a shocking secret about the Ancient Egyptian artifacts they are studying.
	"The Serpent's Venom"	414	September 29, 2000	Chulak, Earth, Tobin system	Goa'uld, Jaffa, Tobin, Tok'ra	Apophis, Heru'ur, Terok
	SG-1 and Selmak receive solid intel that Apophis and Heru'ur are forming an alliance to rule the galaxy. They plan to use one of the mines from the Tobin system to attack the fleet. Furthermore, Teal'c is captured by his old friend Rak'nor, and is imprisoned onboard Heru'ur's vessel.
File:Jack and maybourn.jpg	"Chain Reaction"	415	December 13, 2000	Earth	N/A	Robert Kinsey, NID
	Major General George S. Hammond is apparently forced to retire, and replaced by a Major General Henry Bauer. There is nothing SG-1 could do about it, since they will fight someone high up in government. However, Colonel Jack O'Neill enlists the help of Harold Maybourne to stop the NID, and Senator Robert Kinsey to return Hammond to his office.
	"2010"	416	January 3, 2001	Earth	Aschen	Aschen
	In an alternate timeline version of the year 2010, the Stargate program has been made public, and they formed an alliance with the Aschen, who helped wipe out the Goa'uld. Soon, Samantha Carter learns that she cannot conceive a child, and suspects the Aschen has something to do with it.
File:Daniel under shield.jpg	"Absolute Power"	417	January 10, 2001	Abydos, Earth	Abydonian, Harcesis	N/A
	The Harcesis has been found on Abydos and taken to Earth by SG-1, where they tell him how to defeat the Goa'uld once and for all. However instead Shifu, the Harcesis shows Dr. Daniel Jackson a vision of what would happen if he gives him the plans to defeat the Goa'uld.
	"The Light"	418	January 17, 2001	Earth, P4X-347	N/A	N/A
	After an Lt. Dean Barber kills himself by the Stargate's unstable vortex and the rest of his team are mysteriously dying, SG-1 links the team's routine mission to P4X-347 to be responsible, as they find a highly beautiful, yet very addictive light.
	"Prodigy"	419	January 24, 2001	Earth, M4C-862	Small energy being	Small energy beings
	Cadet Jennifer Hailey gets Major Samantha Carter's attention after noticing her intelligence, which rivals Carter's. She decides to send her on a mission with an expedition team on M4C-862. There, the teams manage to anger a group of tiny flying orbs, which can literally pass through solid matter with fatal consequences for the teams.
	"Entity"	420	January 31, 2001	Earth, P9C-372	Entity	Entity
	An "entity" from P9C-372 makes its way into Stargate Command through MALP transmission, and immediately begins to take over a section. Trying to disconnect it causes the entity to take control of Major Samantha Carter.
File:Double Jeapordy O'Neill.jpg	"Double Jeopardy"	421	February 7, 2001	Earth, Juna	Altairan, Goa'uld, Jaffa, People of Juna	Cronus
	SG-1 arrives on Juna, where they are captured by Cronus' forces, where Cronus himself doesn't take the reunion well. However, unknown to him, SG-1 is actually the robot copies from the real SG-1's encounter on Altair three years ago.
File:Exodusstargate.jpg	"Exodus (Part 1 of 3)"	422	February 14, 2001	Vorash	Goa'uld, Tok'ra	Apophis, Tanith
	SG-1 return to Vorash to give the Tok'ra a Ha'tak vessel that once belonged to Cronus. But after learning Apophis and his fleet are coming to Vorash, they plan to evacuate Vorash, where Major Samantha Carter has a daring plan to send the planet's sun into a premature supernova, to defeat Apophis once and for all.

Media

DVD

• Stargate SG-1: The Complete Fourth Season

Novels

• Stargate SG-1: Alliances (just after the episode "The Other Side")

Short Stories

• Stargate SG-1: Medical Considerations

External links

• Stargate SG-1 (season 4) on Wikipedia
• SG-1 Season Four on GateWorld

Template:SG1 Seasons