“Whispers” is episode seven of season five of Stargate: Atlantis.
A team from Atlantis discover some catacombs on a planet which house one of Michael’s labs. Dr. Beckett, who was visiting Atlantis when they report back, accompanies Colonel Sheppard to investigate the lab, as he has had prior experience.
The lab contains stasis pods filled with some of Michael’s earliest experiments. The team stays overnight and the fog starts drawing in, a fog with odd properties which starts interfering with their equipment. Then things start appearing in the fog.
One of the creepier episodes and the potential for creepiness is quite well exploited with foggy and dark conditions and confined areas, allowing mostly unseen creatures to attack from cover. This isn’t survival horror, although it does bear some similarities, so it has a much more action based ending. Very few regular cast in this episode – of the current regulars, only Sheppard has a major role and Rodney just has a few lines.