After the success of The Silent Call, producer/director Larry Trimble and his wife Jane Murfin made another adventure film featuring their canine star, Strongheart. Strongheart is the title character, Brawn, a police dog who travels to the north woods with his owner, Marion Wells (Irene Rich). Her brother Lester (Roger James Manning) and fiancé, Peter Coe (Lee Shumway), have sent for her. But Coe turns out to be a rogue, and Brawn protects his mistress from his advances. Marion is then forced to wed the brutal Howard Burton (Joseph Barrel), but he changes his rough ways. We know that he's become a good guy when he saves Brawn from a trap. The couple have a baby (Evangeline Bryant), and the three head for a settlement, with Brawn as their lead sled dog. But a pack of hungry wolves attack, and Brawn heroically fights them off. Then he rescues the infant and carries it to a missionary's home. Incidentally, Brawn gets to have his own romance with a female wolf.
by Janiss Garza synopsis