Mr. Morris, the owner of a large metropolitan department store, gives jobs to paroled ex-convicts in an effort to help them reform and go straight. Among his 'employed-prison-graduates' are Helen Roberts and Joe Dennis, working as sales clerks. Joe is in love with Helen and asks her to marry him, but she is forbidden to marry as she is still on parole, but she says yes and they are married. In spite of their poverty-level life, their marriage is a happy one until Joe discovers she has lied about her past, in order to marry him. Disillusioned, he leaves, goes back to his old gang and plans to rob the department store.

During the Nazi occupation of Czechoslovakia, surgeon Dr. Franticek Svoboda, a Czech patriot, assassinates the brutal "Hangman of Europe", Reichsprotektor Reinhard Heydrich, and is wounded in the process. In his attempt to escape, he is helped by history professor Stephen Novotny and his daughter Mascha.