Stargate Atlantis 4x4
Doppelganger
During an off-world mission Colonel Sheppard unknowingly becomes host to an alien entity, which infects others in Atlantis and afflicts them with terrifying nightmares.
Stargate Atlantis season 4
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4x1Adrift (2) Sep 28, 2007 -
4x2Lifeline (3) Oct 05, 2007 -
4x3Reunion Oct 12, 2007 -
4x4Doppelganger Oct 19, 2007 -
4x5Travelers Oct 26, 2007 -
4x6Tabula Rasa Nov 02, 2007 -
4x7Missing Nov 09, 2007 -
4x8The Seer Nov 16, 2007 -
4x9Miller's Crossing Nov 30, 2007 -
4x10This Mortal Coil (1) Dec 07, 2007 -
4x11Be All My Sins Remember'd (2) Jan 04, 2008 -
4x12Spoils of War Jan 11, 2008 -
4x13Quarantine Jan 18, 2008 -
4x14Harmony Jan 25, 2008 -
4x15Outcast Feb 01, 2008 -
4x16Trio Feb 08, 2008 -
4x17Midway Feb 15, 2008 -
4x18The Kindred (1) Feb 22, 2008 -
4x19The Kindred (2) Feb 29, 2008 -
4x20The Last Man (1) Mar 07, 2008