Young industrialist Clemens Klina doesn't have time for his children and accidentally hires a man who actually came to him, seeking revenge, as a nanny for them.
When Adolf Hitler reawakens at the site of his former bunker in present-day Berlin, he is mistaken for a comedian and quickly becomes a media phenomenon.
The Duchy of Grand Fenwick decides that the only way to get out of their economic woes is to declare war on the United States, lose and accept foreign aid. They send an invasion force (in chain mail, armed with bows and arrows) to New York and they arrive during a nuclear drill that has cleared the streets.
When college friends reunite after 15 years over the Christmas holidays, they discover just how easy it is for long-forgotten rivalries and romances to be reignited.