Adventures of Rusty (1945)

Fearing that his recentlyacquired stepmother Ann Dennis is competing with him for his fathers affections and saddened by the death of his dog young Danny Mitchell seeks consolation in the companionship of a ferocious Nazitrained police dog Rusty brought to the US by a returning WWIIveteran The stepmother with tender understanding eventually wins Danny over while Danny pacifies his new dog