Preparing to hurl a rock at the Ranger, Collins loses his balance and falls to his death. Later, while looking for a horse for the Lone Ranger, he and Tonto find an injured white stallion, whom they rescue from an enraged buffalo. They nurse the horse back to health, and the Ranger slowly gains the animal's trust and names him Silver. Riding on Silver and Scout, the two men travel to Colby to visit the Ranger's friend Jim Blane, who owns a hidden silver mine; however, they find that Cavendish and his men have been killing and replacing key people in the town in order to take it over, and planning to frame Blane for the murders. With the help of Blane and the sheriff, the Ranger and Tonto capture Cavendish and some of his men, but then the rest of the criminal gang arrives.