A pitbulls aggression is fueled by fear. A Frenchie eats everything.

Cesar helps a trauma survivor, whose three primal dogs get in bloody battles that pose a constant risk of ending in a dog's death or a trip to the ER.

Part 2. Cesar helps a trauma survivor, whose three primal dogs get in bloody battles that pose a constant risk of ending in a dog's death or a trip to the ER.

Cesar helps a possessed pit mix and a miniature dachshund with a giant bark.

A couple with a baby seeks Cesar's help with a dog who bites and guards.

Cesar helps an aggressive beagle and a Malinois that refuse to leave home.

A Border Collie causes isolation and a Chihuahua bites the hand that feeds her.

Cesar rehabilitates a German shepherd whose behavior is getting dangerous.

Cesar rehabilitates a loud, anti-social Chihuahua and her inexperienced pet parents.

Cesar helps sequestered sisters and a woman preparing for surgery.

A Boston terrier fights with an Akita next door; two terriers hunt dogs.

Cesar rehabs an overexcited Australian shepherd and its emotional pet parent.