Un planeta abrasador, Tierra de nadie. La humanidad ha estado viviendo en carne y hueso en una tierra árida donde rugen las tormentas de arena, confiando en el único reactor de energía biológica (Planta) que puede producir agua, alimentos y recursos. En un mundo tan duro, había un alborotador llamado Humanoid Typhoon, que tenía una recompensa de 6 millones de $$ por él. Su nombre es "Vash la Estampida". El veterano periodista Roberto De Niro y la reportera novata Meryl Strife de la Agencia de Noticias Bernardelli conocen a un hombre que se hace llamar Vash mientras investigan la verdad detrás de la “serie de robos de plantas”… ¡Comienza una aventura a través de planetas impredecibles!

Vash salvó a la ciudad de Genera Rock de una crisis con solo una bala, pero ahora lo persiguen los residentes que se enteraron de la recompensa de $6 millones. Vash y sus amigos corren por la ciudad, e incluso el padre y el hijo del villano de Nebraska se unen, y comienza la batalla por la recompensa de Vash. “No quiero lastimar a nadie”, evitando pelear, Vash simplemente sale corriendo. El padre y el hijo de Nebraska que abandonaron la persecución de Vash se dirigieron al salvavidas de la ciudad,

Vash, the town of Jeneora Rock, and the Nebraskas reach a three-way truce, but their brief moment of peace is shattered by yet another assailant. He seems to be after the plant as well, but something more sinister seems to be at play.

Vash meets Nicholas, a suspicious undertaker who carries a huge cross. Before they could get to know each other, though, they are attacked by a huge worm, swallowing them and the building they were in.

Vash is drawn towards a seemingly abandoned village with a giant windmill, for reasons that only he knows. There, the group is attacked by a tremendous gale of gunfire.

Vash and Wolfwood board the massive Sandsteamer vessel to travel to their final destination, JuLai. Yet again, they are ambushed by a hail of gunfire, but this time, it's someone Wolfwood knows.

Many years in the past, a colony ship traveling through space to find a new home for humanity suddenly experienced an emergency. Young Vash and Knives were saved by Rem and crash-landed on the planet No Man's Land on an escape pod.

After surviving the crash, Vash started a life with Luida and Brad, while Knives formed an alliance with Conrad, the leader of the research group called the Sinners. The twins finally meet again in front of an array of plants that have turned red from overwork.

Meryl and Roberto are taken to JuLai, the Third City, by Zazie. There, they learn why and how the human race ended up on this planet, No Man's Land. They also see Conrad, the former leader of the Sinners research group, who explains his goals. Meanwhile, Vash and Wolfwood reach the top floor of the JuLai Tower, where Knives awaits.

Caught in Knives' trap, Vash is dropped into a giant pool. There, Knives attacks the precious memories that helped Vash maintain his love towards humanity. While Vash and Knives clash in this metaphysical realm, Meryl witnesses the astonishing physical manifestations.