Spirits

S2, E13: The SG-11 team has not returned from its mission to planet PXY-887 where they recently discovered an element Trinium that is a hundred times lighter and stronger than steel. Instead the inhabitants of the planet have fired an arrow made of Trinium through the Stargate and into the shoulder of Jack O'Neill. With O'Neill in the infirmary the SG-1 team led by Samantha Carter heads through the Stargate to investigate and to negotiate a mining treaty with the inhabitants. SG-1 is knocked out on the arrival and when they awake they meet Tonané a plains spoken Coast Salish Indian who explains that the SG-11 team were taken by 'the spirits' - the same spirits who gave the valuable metal to his people. Carter and the others are skeptical as they address T'akya the wolf and Xe'ls the raven even after the SG-11 team mysteriously reappears. Negotiations with the Salish reach a stalemate and Tonané returns to Earth with SG-1 and SG-11 to look at alternative mining methods. But when Gen. Hammond tells Conner news of plans by N.I.D. to mine the planet whether the Indians agree or not strange things begin to happen as the spirits determined to protect the Salish reveal their true nature.