Joe Grant is an inventor, fireman and baseball player in his small home town. He gets an offer to play in a big team, he hopes to get more money for his inventions. But he is invited to present his invention to a fire-extinguisher company at the same time when he is supposed to play. Will he be able to show the effectiveness of his invention and win the game ?—Stephan Eichenberg <eichenbe@inka.org.chemie.tu-meunchen.de>