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".