After rescuing a litter of German shepherd puppies from the rubble of a bombed-out kennel in France, American serviceman Lee Duncan (Tyler Jensen) dubs one of them Rin Tin Tin and finds a friend for life. Thanks to a winning personality and amazing animal smarts, the pup goes on to become one of the most recognizable dogs in the moving pictures. Danny Lerner directs this inspiring story of friendship and loyalty based on actual events.