Thor's Chariot.

O'Neill and the SG-1 team return to Cimmeria. The Goa'uld have invaded the planet. The team feels responsible since, on their previous visit they destroyed "Thor's Hammer," the Cimmerian peoples defense against the Goa'uld. The SG-1 team need help to fight the Goa'uld. Heru-ur, O'Neill and Teal'c, head out to scout around and lay explosives.

Meanwhile, Daniel and DR.Carter, search for the Hall of Thor's Might, where they might find weapons to defeat the Goa'uld. They are presented with a series of tests from "Thor", he is an Asgard god who guards the planet. Can they pass the tests in time and find a way to defend the planet and the SG1 Team?