This Synopsis was written by me.
On a faraway, desert planet, with a landscape that was so hot and barren that the peoples' only means of survival was through special plants called "geo plants," there existed a legendary gunman: Vash the Stampede. Also know as the Humanoid Typhoon, Vash was credited with being so dangerous that a $$60, 000, 000, 000 reward had been placed on his head. Vash was said to be responsible for the destruction of many towns, including the great city of July, and even though the cities had been completely demolished, there was no record of him ever killing anyone. However, only two things ever happened to those who caught up to Vash; they either crawled away wounded(usually from self-inflicted damage), or they staggered away in disbelief that such a dork could possibly be the man they were after! Eventually, Vash's exploits got too out of hand, so the Bernadarii Insurance Co. sent Meryl Strife and Milly Thompson to track him down and take record of his actions. Like most of the bounty hunters looking for Vash the Stampede, the insurance girls had difficulty believing that the man they were after was that dorky, donut-loving, wimp! However, they eventually learned that he was Vash the Stampede when they saw that no matter how many bounty hunters tried to take him out, he always managed to survive without taking a life, and he only fired off his gun to prevent injury to others. And all of the people that had met him, ended up being changed for the better. He even makes friends with Wolfwood, a traveling priest who shares his free-spirited personality.
After spending much time with Vash, the girls learn that behind his carefree and gentle exterior, he harbors scars from a tragic and difficult past. Gradually Vash's secrets are revealed when his long-lost brother Knives who, unlike Vash, bears a deep hatred and resentment towards all people, finally shows himself and starts to carry out his plot to destroy all those on the planet. Lots of blood and tears are shed as Vash struggles to choose the right path to take...but will he still be able to carry out his philosophy of being able to save everyone, including Knives?