"Fist of The North Star: The Movie" a.k.a. Hokuto no Ken (1986)

Fist of the North Star, (Japanese: 北斗の拳, Hepburn: Hokuto no Ken) is a 1986 Japanese animated post-apocalyptic action film based on the manga of the same name. It was produced by Toei Animation, the same studio who worked on the TV series that was airing at the time, with the same cast and crew working on both projects. Unlike the TV series, the movie is not a direct adaptation of the manga, but instead tells an alternate story that rearranges characters and plot elements from the manga's first 72 chapters. However, the film retains the more violent content of the original manga, which the television series lacked (Synopsis): Following a cataclysmic nuclear war, the world teeters on the brink of complete destruction. Civilization is polarized into a degenerate  society where opposing packs  of marauding scavengers prey on helpless, homeless nomads. For those who are lucky enough to survive the constant brutality and danger, it is a bleak existence. Life an death blur into abstractions.