Hitto Tamaga lives in a small Japanese town with his father, a researcher of B-Daman, a toy robot that can shoot small balls. However, Hitto's father left home several months ago and has been missing ever since. On his 11th birthday, Hitto's only celebration comes from his cousin Nana, who lives in the same area. A present from his father arrives, containing the B-Daman Hitto has always wanted, Crash Bedaman. With the message "Overcome the difficulties" in mind, Hitto starts competing in battles at Bee Park, a B-Daman arena, where he faces various opponents and gradually uncovers the truth about the mysterious Bedaman organization and his father's disappearance.