A cavalcade of English life from New Year's Eve 1899 until 1933 seen through the eyes of well-to-do Londoners Jane and Robert Marryot. Amongst events touching their family are the Boer War, the death of Queen Victoria, the sinking of the Titanic and the Great War.

Midshipman Roger Byam joins Captain Bligh and Fletcher Christian aboard the HMS Bounty for a voyage to Tahiti. Bligh proves to be a brutal tyrant and, after six pleasant months on Tahiti, Christian leads the crew to mutiny on the homeward voyage. Even though Byam takes no part in the mutiny, he must defend himself against charges that he supported Christian.