Matt Beisner helps two dogs with wild backgrounds - Agedashi, a previously feral blue heeler with violent reactions to strangers, and Lou, a neighborhood street dog with an extreme reactivity to collars. With animal services cracking down on feral dogs, Beisner must find a way to break through Lou's fear of collars before he gets captured and put down. Written by Nat Geo WILD

Matt Beisner takes on two cases, each on the brink of fatal encounters. The Presidents, a pack of five bulldogs, faces daily attacks within the home. Pax, a severely under-socialized pit mix, landed in the Top 10 Most Aggressive Dogs Beisner ever has worked with. Families are forced to make their worlds smaller for the safety of the dogs, so Beisner steps in with the hope of transforming lives. Written by Nat Geo WILD

Matt Beisner helps rebuild two families with jealousy and trust issues. Kai and Goober were once bonded brothers but now need Beisner's help to break up their life-endangering aggression. Frankie is a beautiful Chinese crested whose codependent household has turned him from a beautiful lover into a ferocious bully. Written by Nat Geo WILD

Matt Beisner helps repair two families that are on the brink of disaster. Newlyweds are faced with a heartbreaking decision when their rescue dog tests the strength of their marriage. Beisner helps a reformed killer dog come to grips with its fear-based aggression. Written by Nat Geo WILD

Matt Beisner takes on three dogs that are in real danger of losing their homes or their lives. Moneypenny, a snuggly pug has some severe bullying issues. A beautiful Australian Shepherd named Whiskey strikes fear in his owners' home. Pax brings no peace to his owners, who have had to cut themselves off from the outside world. Can Beisner transform these dogs and help them live happy lives? Written by Nat Geo WILD

A recent widow is at her wits end when her grieving guard dog goes into a downward spiral; a tight-knit family comes to terms with its crippling co-dependence in order to give its dog the social life it deserves.