Lt. Franta Slama is a top pilot in the Czech Air Force who is assigned to train a promising young flier, Karel Vojtisek, and they soon become friends. When Nazi Germany invades Czechoslovakia in 1939, they both reject the authority of their new leaders and escape to England where they join other Czech exiles in the RAF. While flying a mission over England, Karel crash lands and happens upon the farmhouse of Susan, a young woman whose husband is in the Navy. Karel soon falls head over heels for Susan but, while they enjoy a brief fling, in time Susan decides she prefers the company of the older and more worldly Franta. As Franta and Karel struggle to maintain their friendship despite their romantic rivalry.

Josef is a successful violin maker. He enjoys seeing the instruments he makes bring joy to people all over the world. He himself prefers to spend his time in his workshop in the courtyard of a tenement house. He has never been to the sea; his sea is a puddle in the courtyard, which he protects from drying out so that the birds have something to drink. He has no wife or children, only his dog Pampeliška, who accompanies him everywhere. Josef secretly loves his beautiful neighbor Anežka and looks forward to Wednesday chess games with his best friend Václav, a charismatic piano tuner.