After participating to a previous show where they have to bet or be challenged to any kind of competitions, the losing members of the Gaki no Tsukai are selected to spend 24 hours in a setting which they have no knowledge of the theme nor the course of the events. They are exposed to various absurd and crazy situations nonstop for 24 hours and must refrain from laughing. If they do so, hang-men appear and hit the rule breakers with a weapon (the weapon varies every year).

Battlefield Baseball is a tough game — it doesn't end until all the members on the opposing team are dead. In this game the Gedo High team is composed of blue-faced zombies, and their opponents on the Seido High team know they don't have a chance at beating them unless they can bring back a star pitcher who has a lethal pitch called the Super Tornado, but who has hung up his cleats and has no desire to return to the game.