After a young red fox is orphaned, Big Mama the owl and her friends, Dinky the finch and Boomer the woodpecker, arrange for him to be adopted by a kindly farmer named Widow Tweed, who names him Tod. Meanwhile, her neighbor, hunter Amos Slade, brings home a young hound puppy named Copper and introduces him to his hunting dog, Chief, who is at first annoyed by him but then learns to love him. One day, Tod and Copper meet and become best friends, pledging eternal friendship. Amos grows frustrated at Copper for constantly wandering off to play and places him on a leash. While playing with Copper outside his barrel, Tod accidentally awakens Chief. Amos and Chief chase him until they are stopped by Tweed. After an argument, Amos threatens to kill Tod if he trespasses on his property again. Hunting season comes, and Amos takes Chief and Copper into the wilderness for the interim. Meanwhile, Big Mama, Dinky, and Boomer attempt to explain to Tod that Copper will soon become his enemy. However, he naively insists that they will remain friends forever.