In some cases the transformations are nothing short of incredible. Buddy ("the Biter"), a Papillon-corgi mix, is a sweet, loving dog one minute, and a savage biting machine the next. After seeing how Buddy treats his owners, you wouldn't want to get into the same room with him, yet Millan gently approaches the dog and sits on the floor next to him, inching closer until he's touching a very mellow-looking Buddy. "Walk with a dog who's in a traumatic state," Millan advises, "and then when they calm down, show the love." And not a minute before. The boxed set includes five discs of the season's episodes, and extras including three new unseen stories, Millan's essential tips for dog owners (not to be missed) and a behind-the-scenes featurette. --A.T. Hurley