Stargate SG-1

Summit: Daniel Jackson is recruited by the Tok'ra to go undercover at a secret meeting of the Goa'uld System Lords. (S5, ep 16)

Last Stand: Enslaved by the Goa'uld, Dr Jackson attempts to destroy the System Lords. SG-1 faces an attack on the Tok'ra homeworld. (S5, ep 17)

The Warrior: Teal'c and Bra'tac join forces with a charismatic Jaffa who puts his dream of a Jaffa homeworld into practice and attempts to forge an alliance with Earth. (S5, ep 18)

Menace: SG-1 find themselves on a world controlled by the Replicators, and discover a young girl who may hold the key to the salvation of the Asgard. (S5, ep 19)

Crystal Skull: When Daniel seemingly vanishes during an exploration, SG-1 must seek out the assistance of his eccentric grandfather. (S3, ep 21)

The Sentinel: SG-1 must turn to a pair of convicted criminals to save a world from annihilation by the Goa'uld. (S5, ep 20)

Allegiance: An invisible assassin goes on a killing spree, threatening to turn the Tok'ra and their rebel Jaffa allies against each other. (S6, ep 9)

The Sentinel: SG-1 must turn to a pair of convicted criminals to save a world from annihilation by the Goa'uld. (S5, ep 20)

Nemesis: SG-1 face their most formidable foe yet, a creature of mass destruction that not even the Asgard can control. (S3, ep 22)

Meridian: In a moving episode, Jackson makes the ultimate sacrifice to save a race of people who would otherwise die. His exposure to radiation seems fatal. Can Ona Desala help? (S5, ep 21)

Cure: A flawed miracle drug threatens to devastate the Pangeran civilisation, leading SG-1 to a shocking discovery about the origins of the Tok'ra. (S6, ep 10)

Meridian: In a moving episode, Jackson makes the ultimate sacrifice to save a race of people who would otherwise die. His exposure to radiation seems fatal. Can Ona Desala help? (S5, ep 21)

Small Victories: SG-1 must face and destroy the replicators that have made their way to Earth. (S4, ep 1)

Revelations: In a gripping season finale, Osiris and Carter come face-to-face in a confrontation which can only end in tragedy - but for whom? (S5, ep 22)

Prometheus: Hostile forces commandeer an alien spaceship that government scientists are building in an underground bunker. (S6, ep 11)

Revelations: In a gripping season finale, Osiris and Carter come face-to-face in a confrontation which can only end in tragedy - but for whom? (S5, ep 22)

The Other Side: SG-1 responds to a plea for help from a civilisation that has traced its roots back to Earth. (S4, ep 2)

Redemption (Part 1 of 2): Unable to return to his home planet, Jonas decides to finish what Daniel started. Plus, the Stargate malfunctions. (S6, ep 1)

Unnatural Selection: When the Asgard homeworld is overrun by replicators in an advanced state of evolution, Thor enlists SG-1 to save the day. (S6, ep 12)

Redemption (Part 1 of 2): Unable to return to his home planet, Jonas decides to finish what Daniel started. Plus, the Stargate malfunctions. (S6, ep 1)