Havoc is boss of the Genghis Pack. She browbeats and bites Angel, and even kills her pups. It is all part of the social structure of a group of wild hunting dogs that Jane Goodall and her husband, cameraman Baron Hugo Van Lawick, have been studying and filming for over two years. Jane is best known for her study of chimpanzees in the wild that led to a best-selling book, and a very memorable BBC film. This is their second major study, and an even more memorable film.