Between Two Fires (S05E09)

SG-1 travels to the planet of Tollana to attend the funeral of their old acquaintance, Chancellor Omoc ("Enigma"). But more surprising than Omoc's sudden death is news that Chancellor Travell has reversed the Tollan government's longstanding policy against sharing their technology. The Tollans are now willing to trade advanced weaponry with Earth and want O'Neill to be the negotiator. But before SG-1 leaves the planet, Carter is secretly passed a small object by her Tollan friend, Narmin. Upon arriving back at the SGC, Carter reveals Narim's object which suddenly projects a holographic image of Narim warning them that Earth is in great danger. General Hammond authorizes the team to return to Tollana and find out more of the motivation for Chancellor Travell's sudden change of policy, and see if there's a hidden agenda behind the deal. (Metro-Goldwyn-Mayer (MGM))