Dog Whisperer with Cesar Millan

Cesar helps a woman who adopted her brother's pit bull, Gotti, after her brother's untimely death in 2008.

Expedition Wild star Casey Anderson had no problem training his pet black bear, Brutus, but he can't get a handle on his wife's aggressive dogs.

Actress Rhona Mitra (The Gates) needs help handling her bulldog, Oscar.

Two astronauts seek help socializing their dogs, who are fiercely protective. Also: a pit bull-mix has a habit of sneaking out of its home.

Expectant parents seek help socializing their rescue dog, Justice, who has serious trust issues.

The Australian shepherd became overly aggressive after being attacked by two boxers, and now its owners fear for their son's safety.

Cesar helps socialize a wheaten terrier who doesn’t play nice with other dogs.

A poodle mix is afraid of men and has even attacked its owners' young nephews. Also: a couple's two dogs are violently aggressive toward each other.

A police chief trained Viper, his Belgian Malinois, to be a K-9 contraband detection dog.