Growing up on the grounds of one of Germany's largest psychiatric hospitals is somehow - different. For Joachim, the director's youngest son, the patients are like family. They are also much nicer to him than his two older brothers, who drive him into fits of rage. His mother, painting watercolors, longs for Italian summer nights instead of constant German rain, while his father secretly, but not discreetly enough, goes his own way. But while Joachim slowly grows up, his world, not only through the loss of his first love, gets more and more cracks...
Shortly before the end of the Second World War, Anna and her eleven-year-old son Felix seek refuge in the countryside, where a strict Nazi regiment also prevails. In contrast to his mother, Felix slowly succumbs to right-wing propaganda.
A team of Arctic geologists stumble across an abandoned laboratory in which the Nazis developed an incredible and brutal secret weapon during the final months of WW2. Deep in the ice, they accidentally awake a deadly army of flying zombie sharks ridden by genetically mutated, undead super-humans, who are unleashed into the skies, wreaking their bloodthirsty revenge on any aircraft that takes to the air. An elite task force is assembled to take on this deadly threat and stop the Sky Sharks from conquering the air, but as time runs out, the task force realises they will have to fight fire with fire, and the stage is set for the greatest flying super-mutant zombie shark air battle the world has ever seen....