A Boy and His Dog (1975)

Set in the year 2024 in post-apocalyptic America, 18-year old Vic and his telepathic dog, Blood, are scavengers in the desolate wilderness ravaged by World War IV, where survivors must battle for food and shelter in the desert-like wasteland. Vic and Blood eke out a meager existence, foraging for food and fighting gangs of cutthroats.