A hero called the legendary third baseman in the former prestigious grass baseball team "Peanuts", will start to rebuild the peanuts that have now turned into weak teams from the outset. Peanuts are going to fight against the team of strong teams, taking advantage of the redevelopment of the city where Captain Sagara lives.

After terminally ill Bussan finally passes away he misses hanging out with his still living friends and decides to return to Kisarazu. In his ghost form however only his most trusted friends can see him, and his meddling in the lives of the living results in the return of Ozzy and a long dead team of American baseball players who drowned off the shores of Kisarazu. It's down to Bussan and the Cats to save the day and restore the town to order, but can Bussan bring himself to say bye-bye once and for all?

When Giratina is discovered to be able to create parallel dimensions, it's up to Ash and his friends to stop a mysterious stranger from using its powers for evil.