An innocent man is released from prison after 12 years and tracks down the witnesses who lied about him in court.

An ex-chorus girl lives on the Riviera, supported by a married man she doesn't know is a crook.

When his wife stops writing to him and his letters are returned unanswered, Dan becomes extremely concerned about her welfare. He returns home but is only able to meet with her briefly before she is found murdered. Dan is the obvious suspect but has only 36 hours to find out who murdered her. In so doing he uncovers a shocking catalogue of his wife's past affairs and an identity that he knew nothing about.

Unknown to everyone but his shady Middle Eastern bosses, watchmaker Hawkins is actually a professional hired assassin with a predilection for killing his targets with bombs. After disposing of a dictator and millionaire, Hawkins is assigned to kill a politician who is heading to a remote hotel, The Green Man, for a secret tryst with his secretary. There, however, Hawkins' plot is discovered by vacuum salesman William Blake, who determines to stop him.

In the early days of World War II, a German U-boat is sunk in Canada's Hudson Bay. Hoping to evade capture, a small band of German soldiers led by commanding officer Lieutenant Hirth attempts to cross the border into the United States, which has not yet entered the war and is officially neutral. Along the way, the German soldiers encounter brave men such as a French-Canadian fur trapper, Johnnie, a leader of a Hutterite farming community, Peter, an author, Philip and a soldier, Andy Brock.