It is 1939. Flamboyant Czech diplomat Jan Masaryk has fled to America to escape his recent past. Germany has invaded Czechoslovakia and Masaryk is now a man with no nation. In America he tries to forget the personal and political betrayal he and his country have suffered but these events shadow his every step. As the Czechoslovak ambassador in London, Masaryk failed to win the support of the British and could not avert the ruination of his country. With the help of Dr. Stein, an emigre German psychiatrist, and the beautiful writer Marcia Davenport, Masaryk tries to overcome his demons and re-live the dramatic events leading to the outbreak of the second world war.

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.