Copper is a hound dog who is brought home by Amos Slade, a hunter. While still in puppy stage, he befriends a fox named Tod, and they become the very best of friends. Reality strikes, though, when he is sent off on a hunting trip with Chief and their master, and he is taught how to be a hunting dog.
Upon arriving home, he reminds Tod of his new status, and Tod seems hurt by the change in their friendship. When Chief sees Tod on their property, Copper saves him from getting killed by Amos Slade. However, when his escape results in Chief almost being killed, he claims revenge on Tod.
After hunting desperately for Tod, Copper is faced against a bear to protect his master, but gets hurt in the process. He finds it hard to stand up to the bear, but Tod comes and saves him. Therefore, in turn, when the bear is gone and Amos Slade tries to take advantage of Tod's injuries, Copper stands in the way to save Tod. Their friendship is repaired.