Stargate SG-1

Season 9

TV-PG

74%

As one team member transitions into a new role, another is met with hesitation in season nine. Having learned of the Ori's plan to control the mortal plane, the team must find Merlin's secret weapon that may destroy the Ori and ensure the safety of Earth.

Where to Watch Season 9

20 Episodes

Avalon (1)
E1
Avalon (1)An Air Force pilot attempts to reassemble SG-1 after they have gone their separate ways. An old "friend" arrives on Earth asking for Daniel's help in finding an ancient treasure -- and she won't take no for an answer.
Avalon (2)
E2
Avalon (2)An Ancient communications device renders Daniel and Vala unconscious, sending their minds to another galaxy -- where they inhabit the bodies of two people persecuted by the followers of an evil religion.
Origin (3)
E3
Origin (3)Daniel and Vala have used the Ancient device to inhabit the bodies of people in the Alterans' home galaxy. They have been taken by a Prior of the Ori to meet the Doci, one who speaks with the Ori, their gods. Daniel surmises that the Ori are what the Alterans who became the Ancients left behind and have ascended in a similar fashion, but without the restrictions.
The Ties That Bind
E4
The Ties That BindVala returns to the SGC upon having been separated from Daniel for a little under an hour. The effects of the bracelets have not diminished even though they have been removed. In order to get the effects reversed, Mitchell, Jackson, and Vala must deal with many people that Vala has used over the years to gain favors.
The Powers That Be
E5
The Powers That BeVala leads SG-1 to a planet which the Priors have visited with a plan to keep them from worshiping the Ori. Once there she reveals that the symbiote that once held her ruled over this planet. She feels that keeping them in allegiance to her will hinder the spread of Origin to this world.
Beachhead
E6
BeachheadA Prior of the Ori has established an ever-growing forcefield on a Jaffa-controlled planet called Kalana. A minor Goa'uld named Nerus, who engineered the multiple Gate connections required for the defeat of the Replicators, comes to the SGC with information on the event and offers his help.
Ex Deus Machina
E7
Ex Deus MachinaFollowing the death of a Jaffa on Earth and the disappearance of a prominent businessman, SG-1 starts an investigation into what remains of the Trust and into the actions of the Jaffa Nation. They discover that Ba'al is hiding on Earth after losing his forces to the Jaffa and that the Jaffa are secretly attempting his capture.
Babylon
E8
BabylonSG-1 investigates a planet that is said to be the home of the Warriors of Sodan, a legendary tribe of Jaffa said to have not served the Goa'uld in 5,000 years. In an encounter with the warriors, Mitchell deals a deadly blow to one of the Sodan and is captured and taken to their village. There he awaits a battle to the death as punishment for his crime.
Prototype
E9
PrototypeIn an attempt to observe what may be an undiscovered black hole, Carter is sent to the wrong planet. She returns with this information and begins diagnostics on the dialing computer. When they find that nothing is wrong on their end, Carter theorizes that the gate is keeping people out by redirecting them to a random planet. She cracks the code keeping them out and SG-1 goes to investigate the planet.
The Fourth Horseman (1)
E10
The Fourth Horseman (1)A Prior has convinced Gerak, leader of the Jaffa Nation, into following Origin. He is attempting to make Origin a state religion for the Jaffa. Teal'c and Bra'tac attempt to make a case against the Ori, but to no avail. Meanwhile, a "Prior plague" has breached the SGC and spread to the rest of Colorado.
The Fourth Horseman (2)
E11
The Fourth Horseman (2)As the Ori plague spreads rapidly, SG-1 hopes that the Prior who caused the disease may hold the key to its cure. Gerak tries to rally the Jaffa to the Ori's cause, prompting Teal'c and Bra'tac to initiate a resistance.
Collateral Damage
E12
Collateral DamageWhen SG-1 travels to an Asgard Protected Planet, Colonel Mitchell is accused of a murder he did not commit.
Ripple Effect
E13
Ripple EffectMultiple SG-1s show up at Stargate Command, leading the "real" team to conclude that they have each been inadvertantly displaced from different parallel realities.
Stronghold
E14
StrongholdBaal kidnaps Teal'c as part of a plot to brainwash those Jaffa advocating a move toward democracy. Cameron Mitchell learns that an old friend is about to die.
Ethon
E15
EthonA contact within the Rand Protectorate comes to Earth with news that the Ori have given his people a superweapon to use against the Caledonian Federation in exchange for their conversion to Origin. SG-1 plans to turn the people from their newfound religion and destroy the superweapon.
Off the Grid
E16
Off the GridWhile investigating the source of an addictive corn-like crop, SG-1 becomes involved in a firefight. They are forced to fall back to the gate, but as Daniel is dialing, both the Stargate and the DHD are beamed away.
The Scourge
E17
The ScourgeA tour of an off-world research base for a group of foreign diplomats turns dangerous when an insidious insect species gets loose.
Arthur's Mantle
E18
Arthur's MantleMitchell and Carter are shifted to another dimension, making them invisible to everyone at the S.G.C. Meanwhile, Teal'c and SG-9 discover that the Sodan have been brutally attacked.
Crusade
E19
CrusadeVala Mal Doran makes contact with Stargate Command from the Ori home galaxy, and tells the story of her life undercover in a village of followers building the Ori's invasion fleet.
Camelot
E20
CamelotSG-1 discovers the village of Camelot on an alien world, and must face Merlin's security system when they go in search of an Ancient weapon. Elsewhere, Earth and its allies assemble a fleet when a working Ori Supergate is discovered.