Stargate Atlantis: Pilot Episode (UMD for PSP) - Region 0 UMD for PSP

When SG-1 discovers what it believes to be the remnants of the Lost City of the Ancients ? the originators of the Stargates ? Stargate Command launches an investigation. A new team of explorers, headed by civilian Dr. Elizabeth Weir, travels to the distant Pegasus Galaxy, where it discovers an advanced but deserted city on the ocean floor, a group of nomadic humans and a deadly enemy that feeds on humans as an energy source!