When the youthful troop of teenagers hear that their forest, the Heiner Hain, is about to be torn down, they decide that something has to be done.

When the youthful troop of teenagers consisting of skateboarder Arnie, hat wearing Sty, biscuit supplier Dutch and Kalle hear that their forest, the Heiner Hain, is about to be torn down, they decide that something has to be done. So they start making plans - how should they go up against the company that wants to destroy the forest? They go on an exciting journey filled with demonstrations, new friendships and maybe some criminal activity .