Shin Hokuto no Ken plot
"The successor of the assassin's art of Hokuto Shinken gets involved in the conflict between Last Land and Freedom Village."
In the 21st century, nuclear war has devastated most of the Earth's surface, resulting in a massive lack of water. A man named Sanga decides to take advantage of this and build a fortified harbor within which he can rule as a dictator over the inhabitants. When he learns that the inhabitants of a nearby town are digging a well for water, he sends his subjects to sabotage it. But then Kenshiro, master of Hokuto Shinken, becomes involved in the whole incident and does not let this injustice pass.