SG-1 Season 9

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Season 9 of Stargate SG-1 is a 20-episode season that aired from July 15, 2005 to March 10, 2006.


Main cast

Recurring cast


Image Episode Name Episode No. Airdate Written by Directed by
Avalon, Part 1.jpg "Avalon, Part 1" 901 July 15, 2005 Robert C. Cooper Andy Mikita
Cameron Mitchell comes to the SGC to take command of SG-1 after the team disbands. Vala Mal Doran comes to Earth to locate an Ancient treasure and uses technology to bind herself to Jackson to ensure that she gets a share. A fragmented SG-1 locates a hidden chamber in England.
Avalon, Part 2.jpg "Avalon, Part 2" 902 July 22, 2005 Robert C. Cooper Andy Mikita
Discovering a trove of Ancient treasure, a piece of technology found there allows Jackson and Vala to communicate with people left behind by the Ancients in another galaxy. They find people who worship ascended beings who have created a religion to control the people.
Origin (episode).jpg "Origin" 903 July 29, 2005 Robert C. Cooper Brad Turner
The Ori begin sending their Priors to the Milky Way to begin to convert them to Origin. Jackson and Vala learn more about the Ori while trying to find a way to warn Earth. Gerak, the new leader of the Jaffa High Council comes to Earth.
The Ties That Bind.jpg "The Ties That Bind" 904 August 5, 2005 Joseph Mallozzi and Paul Mullie William Waring
Jackson and Vala find that they are still connected and cannot be separated for long before they will die. Going in search of a solution, they have to continue to get items that Vala has stolen to trade for other items in order to get the information they need.
The Powers That Be.jpg "The Powers That Be" 905 August 12, 2005 Martin Gero William Waring
Vala recommends a planet to go to in an attempt to stop the people from converting to worshipping the Ori only for it to be one of Qetesh's planets and the people think she is still their god. After she is imprisoned, a Prior arrives and infects the people with a plague.
Beachhead.jpg "Beachhead" 906 August 19, 2005 Brad Wright Brad Turner
The SGC is contacted by the Goa'uld Nerus who provides them with information about an attack on a Jaffa planet where the Ori are attempting to build a beachhead. A strange force field is growing on the planet and a new nuclear weapon is brought to destroy it.
Ex Deus Machina.jpg "Ex Deus Machina" 907 August 26, 2005 Joseph Mallozzi and Paul Mullie Martin Wood
After a Jaffa turns up dead on Earth, it is discovered that Ba'al and other Goa'uld are hiding on the planet. Gerak sends more Jaffa to hunt them down and Ba'al threatens to detonate a Naquadah bomb if the SGC comes after him.
Babylon (episode).jpg "Babylon" 908 September 9, 2005 Damian Kindler Peter DeLuise
While searching for the Sodan, a group of Jaffa who turned against the Goa'uld thousands of years ago, Mitchell is injured in a fight against one of them and is set to take part in a battle to avenge the Sodan he killed. SG-1 interrogates this Sodan who was only injured and not killed.
Prototype.jpg "Prototype" 909 September 16, 2005 Alan McCullough Peter DeLuise
SG-1 discovers a man being held in a laboratory and soon learn that he is a human clone of Anubis and has been physiologically accelerated and has access to advanced abilities. Jackson recommends that he be killed while Woolsey thinks that he can be used to find a way to fight the Priors.
The Fourth Horseman, Part 1.jpg "The Fourth Horseman, Part 1" 910 September 16, 2005 Damian Kindler Andy Mikita
SG-6 returns to Earth infected with a Prior plague which escapes the base and begins spreading across the planet. Carter and Lee work on an anti-Prior device and are joined by the ascended being Orlin, who retakes human form in order to warn them about the Ori.
The Fourth Horseman, Part 2.jpg "The Fourth Horseman, Part 2" 911 January 6, 2006 Joseph Mallozzi and Paul Mullie Andy Mikita
As the Prior plague spreads on Earth, teams work on a cure but they need blood from the Prior who made the disease so the anti-Prior device is tested. Gerak decides to have the Free Jaffa Nation follow Origin and is turned into a Prior himself.
Collateral Damage.jpg "Collateral Damage" 912 January 13, 2006 Joseph Mallozzi and Paul Mullie William Waring
While meeting the Galarans who are working on a memory implantation technology, Mitchell is accused of the murder of one of their scientist and he confesses to it. Believing his memories to be false, Mitchell has to relive them over and over to learn the truth.
Ripple Effect.jpg "Ripple Effect" 913 January 20, 2006 Story by: Brad Wright, Joseph Mallozzi and Paul Mullie Teleplay by: Joseph Mallozzi and Paul Mullie Peter DeLuise
A second SG-1 returns to Earth and are interviewed to learn they may come from an alternate reality. Soon more SG-1's begin coming to Earth from more alternate realities and a plan is developed to prevent anymore from arriving but will strand the ones already here.
Stronghold.jpg "Stronghold" 914 January 27, 2006 Alan McCullough Peter DeLuise
When member of the Jaffa High Council begin to speak out against democracy, Teal'c and Bra'tac move to support it but after Teal'c is kidnapped by Ba'al a plot is uncovered to undermine the Free Jaffa Nation. Mitchell goes to visit an old friend who is dying.
Ethon.jpg "Ethon" 915 February 2, 2006 Story by: Damian Kindler and Robert C. Cooper Teleplay by: Damian Kindler Ken Girotti
Jared Kane asks for help from the SGC when a Prior provides his people with blueprints to build an attack satellite. Jackson goes to try to negotiate for them to disable the satellite and is arrested. The Prometheus heads to destroy it but the weapon comes online.
Off the Grid.jpg "Off the Grid" 916 February 10, 2006 Alan McCullough Peter DeLuise
SG-1 are captured while investigating a new addictive food when the Stargate is beamed away before them. After being rescued they learn that Ba'al has been taking Stargates to establish his own Stargate Network and they head out to recover them.
The Scourge.jpg "The Scourge" 917 February 17, 2006 Joseph Mallozzi and Paul Mullie Ken Girotti
SG-1 escort representatives of the International Oversight Advisory to the Gamma Site for a tour but soon have to protect them when one of the research subjects, a bug created by the Priors escapes and begins multiplying and using humans as a new food source.
Arthur's Mantle.jpg "Arthur's Mantle" 918 February 24, 2006 Alan McCullough Peter DeLuise
While working on a device found in Glastonbury, Mitchell and Carter are shifted out of phase and unable to communicate or interact with anyone else. After receiving a call for help from the Sodan, Teal'c goes with SG-12 to find them all dead.
Crusade.jpg "Crusade" 919 March 3, 2006 Robert C. Cooper Robert C. Cooper
Vala inhabits Jackson's body and tells the story of how she ended up in the Ori galaxy and reveals that she has become miraculously pregnant. She informs them that she made contact with the Anti-Ori underground and reports that the Ori are building ships to invade.
Camelot (episode).jpg "Camelot" 920 March 10, 2006 Joseph Mallozzi and Paul Mullie Martin Wood
SG-1 heads out and discovers Camelot where Merlin had a library that may contain information on the weapon he was building. While searching the library, the village is terrorized by the Black Knight. The Ori successfully create a Supergate and send through warships.


DVD's and Blu-rays