While surveying an Ancient weapons satellite in the Lantean system, the team detects a 10,000-year-old Wraith distress signal from a nearby planet.

"Stargate: Atlantis" The Defiant One (TV Episode 2004) - IMDb

The episode is noted for its darker tone, particularly regarding Dr. Gall's decision to end his own life to free McKay to help Sheppard. Cast & Credits Director: Peter DeLuise Writer: Peter DeLuise

* Peter DeLuise. * Writers. Peter DeLuise. Martin Gero. Dean Devlin. * Joe Flanigan. Torri Higginson. Rachel Luttrell.

Richard Ian Cox (Dr. Brendan Gall), Paul Magel (Dr. Abrams), and James Lafazanos (The Wraith).