A infant bear cub witnesses the death of his mother in a rockslide and is forced to set out to fend for himself. The young bear encounters a giant grizzly, who at first cannot abide the young bear's presence. However, the grizzly is soon ambushed by a pair of hunters, Bill and Tom, after an altercation with their pack animals. As the injured beast cleans his wounds in a stream, the young bear comes to his aid, and the giant takes the youngster under his wing. However, Bill and Tom have sworn revenge on the grizzly ...