A young European boy living in San Francisco is reluctant to marry his long-term girlfriend because he wants to travel around the world first. His wealthy uncle agrees to send him on a global expedition aboard his ship, but en route the boy and his travelling companion are shipwrecked on a remote island, populated by countless prehistoric creatures as well as gold-hunting bandits.
A writer returns home to his estate after service in World War I. He has developed a very bad case of depression due to a war wound concerning his genitalia. He contemplates suicide, but recovers after becoming interested in his caretaker's 12 year-old war orphan niece, who now lives in the manor.
In the 15th century, in a poor Italian village, the monks of a modest convent take up an abandoned baby. Unfortunately, for all their efforts, they prove unable to trace his parents. So they set up providing tender loving care to the little boy. Marcellino lives a happy life among the men of God but, as he grows up, he misses his mother more and more.
