Stargate Atlantis S05 E15 Remnants

"A new gate will open. A lost city will rise again."

While being evaluated by the International Oversight Advisory, Richard Woolsey meets a beautiful scientist new to Atlantis, who is not what she appears. Meanwhile, Lt. Colonel John Sheppard is captured and tortured by an enemy he thought he'd killed several years ago: his sworn enemy, Genii Commander Acastus Kolya.