Roddy McDowall, Donald Crisp, May Whitty, Edmund Gwenn, Nigel Bruce, Elsa Lanchester, Elizabeth Taylor, Ben Webster, J. Pat O'Malley, Alan Napier, Arthur Shields, John Rogers, Alec Craig, May Beatty, George Broughton
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.