Auf der Jagd nach dem Nierenstein

This is an exciting childrens adventure story about Simon, a little boy who travels around in his grandfathers body trying to find out what is ailing the old man. On his voyage he meets the fascinating inhabitants of the human body. There is even time for a romantic encounter with a beautiful Blood Cell, before he has to face the terrible Salt Hackers who are causing Grandfathers pain. (Norsk Filminstitutt)