After a soldier cuts off the arm of king's cousin, king decides to deactivate the army. Of course, generals don't like it at all and they try to kill the king. The assassin should be artificial body in the shape of actress Evelina Keleti and with brain of psychotic serial killer Fany Stubová. They also manage to kill king's astrologer Stuart Hampl, who warns the king. Accidentally, Hampl's brain is implanted into assassin's body, actress Keleti is killed and chaos begins.
The young Prince Charles (Jaromír Hanzlík), the future King of his country Charles IV, is being educated at the French court in the company of his fiancée Blanche (Daniela Kolárová). One day he receives a summons from his father John of Luxembourg (Milos Kopecký) in Italy. He leaves for Italy accompanied by a deputation from Bohemia. On the way the prince's company fights a battle with armed Milanese against heavy odds. Thanks to Charles's perspicacity, the prince's almost naked soldiers win through. In Lucca in Italy Charles joins his father, and here he experiences an amorous adventure and escapes from the traps laid by the Italian rebels.
