 SG-1 comes in contact with an alien race called the Volians, a peaceful agricultural race, who introduce them to an advanced race called the Aschen. With the promise of advanced technology from the Aschen, negotiations are opened up and the SGC prepares to go to one of the possible Aschen home world. When it it realized that the home world might be the one mentioned on a note sent trough the stargate a year earlier, the team becomes suspicious, leaving Daniel and Teal c to explore a buried city on the planet. As the negotiations continue despite the warnings of O Neill, Daniel discovers a secret about the Volians past with the Aschen that could have deadly consequences for Earth.