A Boy and His Dog is a cycle of narratives by science fiction author Harlan Ellison. The cycle tells the story of a boy (Vic) and his telepathic dog (Blood), who work together as a team to survive in the post-apocalyptic world after a nuclear war. The original 1969 short story was adapted into a 1975 film by L.Q. Jones. Both the story and the film were well received by critics and science fiction fans, but the movie was not successful commercially. The original novella was followed by short stories and a graphic novel.
The novella and the film adaptation have the same alternate timeline setting, diverging with the failed assassination of President John F. Kennedy. Instead of concentrating on the Space Race, technological advancements in robotics, animal intelligence, and telepathy take place. A more heated Cold War takes place, culminating in a conventional World War III. A truce is signed, lasting another 25 years, though mounting tensions lead to a second outbreak of hostilities in 2007, this time involving massive nuclear warfare. Civilisation is almost entirely obliterated, leaving the surface of the Earth reduced to a desolate, irradiated wasteland.
Years later, in 2024, foragers who remain above ground must fight for the remaining resources. Most survivors in the former United States are male, as females were usually in the bombed cities, while many men were out, fighting in the war. In the novella, nuclear fallout had created horrific mutations, such as the feared burnpit screamers, known for their noise and deadliness (in the film, they appear in only one scene, though they are only heard).
Again, I've chosen to include research on A Boy and His Dog as it covers the post-apocalyptic genre in both film and comic book form.