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.

Cast: Roddy McDowall, Donald Crisp, May Whitty, Edmund Gwenn, Nigel Bruce, Elsa Lanchester