Out Of Mind: O'Neill awakens in a futuristic world where an unfamiliar Stargate team tell him he has been frozen for eight decades and the members of SG-1 are long dead. (S2, ep 22) [S]
One False Step: SG-1's presence in an alien community causes a wave of illness, which threatens to wipe out the entire alien civilisation. (S2, ep 19) [S]
Serpent's Song: When SG-1's mortal enemy Apophis seeks sanctuary in the command centre, his presence unleashes an ancient spirit whose wrath threatens to destroy everyone. (S2, ep 17) [S]
The Fifth Race: When O'Neill looks into an alien viewer, he becomes a receptacle for ancient knowledge which could unlock some of life's deepest mysteries. (S2, ep 16) [S]
A Matter Of Time: While trying to save fellow Stargate officers from a black hole, the SG-1 team and Earth become threatened by the hole's potentially fatal gravitational pull. (S2, ep 15) [S]
Touchstone: While attempting to return a stolen weather device to the planet of Madrona, O'Neill and the SG-1 team uncover a government agenda that has sinister implications. (S2, ep 14) [S]
Spirits: Plans by Stargate Command and the NID to mine a planet populated by Coast Salish Indians run into trouble due to the mysterious spirits who protect the planet. (S2, ep 13) [S]
The Tok'ra - Part 2: Samantha Carter's father, facing certain death due to cancer, agrees to become a host for one of the Tok'ra - the sworn enemies of the Goa'uld System Lords. (S2, ep 12) [S]
Secrets: Daniel Jackson learns that his wife is pregnant with Apophis' child and O'Neill discovers that a reporter is ready to blow the lid off the top-secret Stargate project. (S2, ep 9) [S]
Thor's Chariot: The SG-1 team must help stop a Goa'uld invasion on a planet whose main defence was Thor's hammer - which was destroyed by the team during an earlier visit. (S2, ep 6) [S]
Prisoners: After helping a murderer, the SG-1 team is banished to a penal world where an unusual ruler holds the key to their return home. (S2, ep 3) [S]
Serpent's Lair: O'Neill and the SG-1 team find themselves on a suicide mission in an attempt to stop the Earth's destruction by the Goa'uld. (S2, ep 1) [S]
Singularity: The SG-1 team rescues a little girl, the sole survivor of a disease that wiped out a planet, only to find she is a human time bomb. (S1, ep 15) [S]
Hathor: A Gou'ald, who has taken on the persona of the Egyptian sex goddess Hathor, casts her deadly spell over all the men on the Stargate base. (S1, ep 14) [S]
Thor's Hammer: O'Neill and Teal'c are trapped in an underground labyrinth and must fight for their lives against Unas, the original Goa'uld host. (S1, ep 10) [S]
Brief Candle: O'Neill begins to age at an alarming rate and the SG-1 team are unable to help him. Guest starring Bobbie Phillips as Kynthia. (S1, ep 9) [S]
The First Commandment: O'Neill and the SG-1 team investigate the disappearance of SG-9, only to discover that Captain Jonas Hanson is ruling the planet like a vengeful god. (S1, ep 6) [S]
Children Of The Gods (Part 1 of 2): In the first episode, Colonel O'Neill is called out of retirement to lead a military unit on the first of many missions through the Stargate. (S1, ep 1) [S]
Unending: SG-1's battle with the Ori comes to a stunning conclusion in the final episode of this popular show. Who will be victorious? (S10, ep 20) [S]
Dominion: The SG-1 team hatches an elaborate plot to capture Adria by using Vala as bait, but Ba'al has a sinister plan of his own which could prove deadly for all involved. (S10, ep 19) [S]
Bad Guys: Mistaken for rebels on an alien planet, SG-1 must play the part of hostage takers in the hope of buying themselves enough time to be rescued before they're executed. (S10, ep 16) [S]
The Shroud: When Jackson turns up as a prior asking SG-1 to aid him, it could be a trap. It's up to Jack O'Neill to save his life and end the war with the Ori once and for all. (S10, ep 14) [S]
The Road Not Taken: An experiment goes wrong, leaving Carter trapped in a parallel reality where martial law has been enforced and the Earth is under attack from the Ori. (S10, ep 13) [S]
Line In The Sand: While trying to use Merlin's weapon to protect a village from the Ori, Carter is critically injured. With the village exposed, things look bleak for SG-1. (S10, ep 12) [S]
The Quest - Part 2: After discovering the frozen body of Merlin, the SG-1 team works to help him build the Sangraal before Adria and her Ori army can track them. (S10, ep 11) [S]
The Quest - Part 1: The SG-1 team face a series of trials as they move closer to finding Merlin's anti-Ori weapon. But they are not the only ones who seek the Sangraal... (S10, ep 10) [S]
Crusade: 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) [S]
Off The Grid: 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) [S]
Stronghold: 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) [S]
Ripple Effect: 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) [S]
Collateral Damage: 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) [S]