The betting industry is also cashing in on amateur soccer - even though sports betting on these games is banned in Germany. Clubs and players are often unaware of this and are left empty-handed in this global business. And that's not all: amateur soccer is threatened by manipulation - the integrity of the Germans' favorite sport is at stake! A team of investigative journalists and data experts uncovers the truth: hundreds of matches from German top and regional leagues are being offered on international betting portals - and in German too. A billion-dollar business.