Jim owns a wild stallion called Fury that none of his ranch hands can tame - except young orphan Joey. When the stallion is injured by one of the ranchers, Joey runs away to help the wounded steed. Jim and his friend Helen find him in the nick of time, saving Fury's life. Jim adopts Joey as his son, and so begins a lifetime of adventure for Fury at the Broken Wheel Ranch.

A wild stallion is menacing all of the local ranches and freeing their horses. Neighbouring rancher Charlie Stevens thinks that Fury is to blame, but Joey has seen the white renegade stallion and must find it, because Charlie wants Fury dead for something he had no part in.

There is a drought. Joey becomes a junior Ranger and tries to protect a couple of hunters from starting a forest fire.