The Nasyans lived peacefully until one day they were suddenly attacked by the Goa'uld. There were several SGC personnel helping the Nasyans evacuate through the stargate. While Carter was giving mouth-to-mouth resuscitation to a Nasyan man, the Tok'ra symbiote named Jolinar of Malkshur took her as a host. The SGC gave the injured Nasyans medical treatment at the Air Force Academy Hospital and then found a new planet for them to relocate. The Nasyans were introduced in the episode, 2.02 "In The Line Of Duty".