Choose an Episode Enemies Threshold Ascension The Fifth Man Red Sky The Rite of Passage Beast of Burden The Tomb Between Two Fires 2001 Desperate Measures Wormhole X-treme Proving Ground 48 Hours a.k.a Teal'c Interrupted Summit Last Stand Fail-safe The Warrior The Menace The Sentinel Meridian Revelations

SG-1 arrives on P9Y-4C3, which contains three major countries. The stargate is located in Kelowna, one of the three, and the team is met by Jonas Quinn, a special advisor to the Kelownan high minister. Further study by SG-1 reveals that Kelowna's tech level is similar to that of the United States in the 1940s, and that several Goa'uld artifacts were found near the planet's stargate. Unfortunately, these artifacts have led to experimentation by Kelownan scientists, and SG-1 discovers that they are developing a weapon powered by Naquadria, an unstable radioactive variant of Naquadah. Such a device, says Dr. Daniel Jackson, could easily destroy the entire planet. When it is accidentally activated, Daniel steps in to shut down the device — exposing himself to a lethal dose of radiation in the process. CORIN NEMEC  ......  Jonas Quinn TERYL ROTHERY  ......  Dr. Janet Fraiser CARMEN ARGENZIANO  ......  Jacob Carter / Selmak MEL HARRIS  ......  Oma Desala GARY JONES  ......  Sgt. Davis Written by  ......  Robert C. Cooper Director  ......  William Waring