The Solitudes episode

In this episode #18 in the first season the SG-1 team return from a battle. The problem is two SG-1 members namely Sam and Jack return through another gate. They are stranded in an ice world. The gate has overloaded and the worm hole has split. The gate was overloaded by the energy weapons being fired in the battle. The SG-C ( mostly Daniel) eventually figure out that the split is to a second earth gate. The story also features Jack and Sam using survival techinques to survive in the cold. The SG-C trace the vibrations of the second stargate and locate and rescue Jack and Sam in Antartica.