Stargate Atlantis

Season 5 Episode 20

Enemy at the Gate

Aired Friday 10:00 PM Jan 09, 2009 on Syfy



  • Trivia

    • Although it is not seen, this episode introduces a new Earth ship, the Sun Tzu, a Chinese ship. It is the fifth Daedalus-class ship to enter service. The other four Deep Space Cruisers are the Daedalus, first seen in the Season 2 Stargate Atlantis episode "Siege 3"; the Odyssey, first seen in the Season 9 Stargate SG-1 episode "Off the Grid"; the Korolev, first seen in the Season 9 SG-1 episode "Camelot"; and the Apollo, first seen in the season 3 Atlantis episode "First Strike". Carter reveals to Sheppard that she is leaving the SGC to command the next ship in the line, formally named the Phoenix in the alternate timeline in "The Last Man", which has been renamed to the General Hammond in honor of the General who has recently died (in a homage to actor Don S. Davis, who passed away shortly before filming of this episode).