[s1e12]: The Defiant One

is the 12th episode of the first season of Stargate Atlantis . In this episode, a mission to investigate an ancient weapons platform turns into a desperate survival situation against a long-dormant enemy. Plot Summary

: The episode is the first to explicitly identify the Ancients as the "Lanteans" . [S1E12] The Defiant One

: The Ancient satellite discovered is roughly the size of a Goa'uld Mother Ship. Main Cast Joe Flanigan Major John Sheppard David Hewlett Dr. Rodney McKay Christopher Heyerdahl The Wraith Survivor Richard Ian Cox Dr. Brendan Gall Boyd Banks Dr. Abrams is the 12th episode of the first season of Stargate Atlantis

You can find more detailed credits and episode synopses on platforms like IMDb or the SGCommand Wiki. : The Ancient satellite discovered is roughly the

While exploring a Lagrangian point satellite —an Ancient defense system located deep in space—Major John Sheppard and Dr. Rodney McKay intercept a distress signal from a nearby planet. Upon investigation, they discover a crashed that has been down for 10,000 years.