When the deer are in rut, they fight for supremacy in their territory. This is also the case in the white deer park. But no one doubts that Rek will defend his position as top dog. Bulli and his rats are also causing trouble. Now they even threaten the fox in his own den. The experienced Thalerwäldler does not have to put up with this. Furious, he and his friends head for the rat headquarters.