Koen Kampioen wants to score

Koen reads a shocking article in the newspaper. His football club Stark is in trouble and is even close to bankruptcy! Koen and his teammates start looking for sponsors, but that doesn't really help. In fact, he doesn't have time for it at all. Koen is so busy with football that his grades at school are going downhill. Because of this, he is no longer allowed to train, and this while he is in a form crisis! Things aren't going well in Koen's group of friends either. How can Koen solve all these problems? And will he manage to keep his starting places at Stark and in the Dutch Under 15 team?