The attackers practice at the Czech Resistance Army in England a little on Germans cut from cardboard. Until suddenly they are selected for a highly secret mission in Prague. Reinhard Heydrich, meanwhile, is lord and master there. He has rolled up the resistance. Czechs who are not Aryan enough are taken away or forbidden to have children. Full of self-confidence, Heydrich drives through the city in his open Mercedes. One hundred and twenty kilometers away, the assassins land with their parachutes in a snowy field.