Heinz Burkhardt

World War I, Eastern Front. A special battery consisting of thirteen soldiers and one cannon successfully holds back the enemy. But then the position of the gun is betrayed to the Russians and the cannon is destroyed. Each of the thirteen men is now suspected of being the traitor.

Princess Mareile and her brother have been kidnapped. Guided by Mr. Moon, Little Muck uncovers the plot of a witch, steals her miraculous running shoes and frees the captive children from the lair of the evil giant Bumbo.