The Return of Rusty (1946)

A young Czechoslovak orphan Loddy Bicek befriended by an American army sergeant is brought into the United States as a stowaway by the soldier He is apprehended but escapes and makes his way to the sergeants home town There he is befriended by young Danny Mitchell and his dog Rusty a K9 veteran of World War II A third boy reports Loddy to the authorities and when Loddy tries to run away he falls into a deep ravine