In 1923, two young ladies depart, unescorted, for a tour of Europe. Their great naïvité and efforts to seem grown-up lead them into many comic misadventures.
Captain Ralls fights Dutch shipping magnate Mayrant Sidneye for the woman he loves, Angelique Desaix, and for a fortune in gold aboard the Red Witch.
A rough and tumble man of the sea falls for a meek librarian.
Pickpocket Kitty's life changes when painter Thomas Gainsborough makes her portrait. The artwork gains the attention of Sir Hugh Marcy, who later decides to use her for his benefit.
Amber St Clair, orphaned during the English Civil War and raised by a family of farmers, aspires to be a lady of high society; when a group of cavaliers ride into town, she sneaks away with them to London to achieve her dreams.