Story arcs

Story arcs are stories which can span many episodes, and are not resolved in a single episode. Stargate SG-1 and Stargate: Atlantis both have many separate story arcs which are investigated in different episodes.

Feature-length episodes[]

These episodes are originally broadcast in two hours, as opposed to the standard one hour. After their original run, feature length episodes are re-cut as two part episodes (see below). They include:

• Stargate SG-1
  • "Children of the Gods"
• Stargate: Atlantis
  • "Rising"
• Stargate Universe
  • "Air, Part 1" and "Air, Part 2"

Two-part episodes[]

These episodes air separately, but tell the same story. It is typical for the first part to end with the line "To Be Continued...". They are frequently used to end and begin seasons. Two-part episodes include:

• Stargate SG-1
  • "The Tok'ra, Part 1" and "The Tok'ra, Part 2"
  • "Out of Mind" and "Into the Fire"
  • "Jolinar's Memories" and "The Devil You Know"
  • "Nemesis" and "Small Victories"
  • "Summit" and "Last Stand"
  • "Redemption, Part 1" and "Redemption, Part 2"
  • "Prometheus" and "Unnatural Selection"
  • "Fallen" and "Homecoming"
  • "Evolution, Part 1" and "Evolution, Part 2"
  • "Heroes, Part 1" and "Heroes, Part 2"
  • "Lost City, Part 1" and "Lost City, Part 2"
  • "New Order, Part 1" and "New Order, Part 2"
  • "Reckoning, Part 1" and "Reckoning, Part 2"
  • "Moebius, Part 1" and "Moebius, Part 2"
  • "Avalon, Part 1" and "Avalon, Part 2"
  • "The Fourth Horseman, Part 1" and "The Fourth Horseman, Part 2"
  • "The Quest, Part 1" and "The Quest, Part 2"

• Stargate Atlantis
  • "Rising, Part 1" and "Rising, Part 2"
  • "The Storm" and "The Eye"
  • "Instinct" and "Conversion"
  • "The Lost Boys" and "The Hive"
  • "Progeny" and "The Real World"
  • "The Return, Part 1" and "The Return, Part 2"
  • "The Kindred, Part 1" and "The Kindred, Part 2"
  • "The Last Man" and "Search and Rescue"
  • "First Contact" and "The Lost Tribe"

• Stargate Universe
  • "Space" and "Divided"
  • "Resurgence" and "Deliverance"

Three-part episodes[]

Three consecutive episodes that air separately, but tell the same story.

• Stargate SG-1
  • "Politics", "Within the Serpent's Grasp" and "The Serpent's Lair"
  • "Exodus", "Enemies" and "Threshold"
  • "Full Circle", "Fallen" and "Homecoming"
  • "Reckoning, Part 1", "Reckoning, Part 2" and "Threads"
  • "Avalon, Part 1", "Avalon, Part 2" and "Origin"
  • "Crusade", "Camelot" and "Flesh and Blood"
• Stargate Atlantis
  • "The Siege, Part 1", "The Siege, Part 2" and "The Siege, Part 3"
  • "Allies", "No Man's Land" and "Misbegotten"
  • "First Strike", "Adrift" and "Lifeline"
  • "This Mortal Coil", "Be All My Sins Remember'd" and "Spoils of War"
• Stargate Universe
  • "Air, Part 1", "Air, Part 2" and "Air, Part 3"
  • "Incursion, Part 1", "Incursion, Part 2" and "Intervention"