Stargate SG-1 S1 E15 - Singularity

Stargate SG-1

Stargate SG-1 S1 E15 - Singularity
8.3

A mysterious affliction wipes out the entire population of a planet, plus an SG team -- except for one young girl. Carter befriends her, but learns that she is being used by the Goa'uld.