A team of explorers made up of soldiers and scientists travels through a Stargate, an ancient portal to other planets. They use the Stargate to explore new worlds, forge ties with friendly civilizations and protect Earth from hostile forces. The TV series is based on the theatrical film `Stargate'.
Avalon (Part 1 of 2): Stargate leaps through the portal for its ninth series. New recruit Cameron Mitchell is stunned by an instant promotion, and soon finds himself led astray. (S9, ep 1)
Avalon (Part 2 of 2): Still bound together by the Jaffa bracelets, Daniel Jackson and Vala are transported to a galaxy populated by worshippers of a strange authority. (S9, ep 2)
Daniel and Vala realise that by reactivating an ancient communications device, they've exposed Earth to the wrath of a group of unforgiving deities. Oops. (S9, ep 3)
Daniel and Vala embark on a series of missions in their quest to unlock the Jaffa device that looks like it's bound them together, forever. (S9, ep 4)
When Daniel and Vala try to undo the teachings of the Ori on a distant planet, they find themselves on the wrong end of their foe's anger. (S9, ep 5)
Fighting against the mighty Ori, the SG-1 team lose someone close to them, but get someone else back in return... (S9, ep 6)
Ex-Deus Machina: The team intervenes when an ongoing conflict between Gerak and Ba'al puts the United States at risk. (S9, ep 7)
While trying to contact a band of legendary Jaffa warriors, Mitchell disappears. Sci-fi with a bite. (S9, ep 8)
Landry and his government overseers come to blows. What should be done about a dangerous, genetically engineered Goa'uld creation? (S9, ep 9)
The Fourth Horseman (Part 1 of 2): As SG-1 tries to stop the spread of a deadly virus, leader of the Jaffa council Gerak tries to convert his people to worship the Ori. (S9, ep 10)
The Fourth Horseman (Part 2 of 2): With Gerak rallying forces against them, the Stargate team races to find an antidote to stop an Ori plague becoming a devastating pandemic. (S9, ep 11)
Mitchell is falsely accused of murder. But he remembers committing it, due to technology that grafts memories into someone else's mind. (S9, ep 12)
When multiple SG-1s turn up at Stargate Command, the real team suspects that they have each been displaced from parallel realities. (S9, ep 13)
Baal brainwashes members of the Jaffa High Council to thwart their move towards democracy, and Mitchell faces a tough decision when an old friend is about to die. (S9, ep 14)
Daniel is imprisoned, and when SG-1 tries to rescue him, the Prometheus is caught in a firefight. Blazing sci-fi drama. (S9, ep 15)
SG-1 is captured on an alien world after a deal goes wrong. Plus, the planet's Stargate goes missing. Intergalactic action. (S9, ep 16)
Foreign diplomats touring an off-world research base are thrown into danger when an insidious insect species gets loose. (S9, ep 17)
Mitchell and Carter are shifted to another dimension, making them invisible to everyone at Stargate Command. (S9, ep 18)
Vala returns to Stargate Command to deliver startling news. The Ori have been steadily building their arsenal, and plan a crusade against their enemies very soon... (S9, ep 19)
The Dark Ages are the setting for a magical series finale. As Jackson and Mitchell battle an evil knight, Carter is thrown into the midst of an apocalyptic war. (S9, ep 20)