Stargate: Atlantis Episode 5.07 Whispers

Dr. Beckett is asked to delay his departure from Atlantis when word comes that Major Anne Teldy and her away team, Sgt. Dusty Mehra, Capt. Alicia Vega and Dr. Alison Porter, have stumbled onto one of Michael's labs inside an extensive underground catacomb.

He and Lt. Col. Sheppard 'gate to Teldy's location, where further investigation reveals an abandoned laboratory containing numerous stasis pods. While Dr. Beckett and Dr. Porter stay behind to sift through the research data that Michael left behind, Sheppard and Teldy's team set out to explore a nearby village.

Beckett and Porter conclude that Michael was experimenting on the genetic characteristics of several life forms. Meanwhile, Sheppard and his team arrive at the village to find it abandoned. Yet chilling walls of fog and flashes of movement within it, suggest that they are not alone.