Mountain bikers club president Thomas Gerster made a fatal fall in the forest, over a carefully hidden rope across the route he usually trained on. Hansen and Stadler examine fanatical wood protector Aichhuber, who felt the cyclists harm nature, and Moritz Reinhard, the clubs eternal second in lucrative races behind Thomas Gerster. Fresh widow Jana Gerster and club vice president Dirk Hoffmayer claim they kept their affair secret enough, but a divorce would clean her out and financial malversations are found.