Switzerland around 1250: A small, seemingly insignificant bridge over the previously impassable Schöllenen Gorge in the Alps draws the attention of Europe and presents the inhabitants of this valley with new challenges. During this time of upheaval, Wilhelm Gorkeit grows up as the son of a swordsmith and meets Count Rudolf of Habsburg from Aargau at an early age. Fateful events and the largest knight battle in Europe intertwine the lives of the two men. As power-hungry minor nobility yearns to seize the territories of the new North-South connection, it is an oath that unites the forces of the valley's inhabitants to defend their threatened freedom. Wilhelm is also nearly brought down by intrigues. His life and that of his loved ones are in danger...