Sergeant Preston was on his way to Forty Mile to investigate a bank robbery, and King was setting as fast a pace as the team could follow through the heavy snow. They were passing Double Cross Creek, where a strike had been made two years before. For a time, people thought it would be as big as the Bonanza, and a town had sprung up at the mouth of the creek, complete with bars and dance halls. But the strike had petered out, and the town was deserted now, it's ramshackle buildings weathered and falling apart. Suddenly, the Sergeant calls out to his team to halt...