A rescue team from earth lands their flying saucer-like spacecraft on an alien world, to discover they are not only not welcomed by the lone survivor of a missing scientific expedition sent there two decades earlier, but, once they have determined to investigate the deaths of his colleagues and bring him back home by force, along with his planet-born daughter, find themselves subjected to assault by something invisible which seems intent on preventing them from leaving the planet, ever.

Hard times come for the Carraclough family and they are forced to sell their dog, Lassie, to the rich Duke of Rudling. Lassie, however, is unwilling to remain apart from young Carraclough son Joe and sets out on a long and dangerous journey to rejoin him.

When Cholera takes the parents of Mary Lennox, she is shipped from India to England to live with her Uncle Craven. Mary changes the lives of those she encounters at her Uncle’s remote estate.