To improve the morale of the German officers, a train with beautiful girls is arranged to entertain them when on leave.

In the early 20th-century, Frenchman Claude meets Englishwoman Ann in Paris. Ann invites him to her family home, intending him for her sister Muriel. Claude falls for Muriel, but families demand year-long separation before approving marriage.

In nineteenth-century California, two children listen to the adventures of a grandfather who fought against the Yankee invaders. At that time a mysterious man, dressed in masked black, appeared.