In the Season 8 opener, Cesar Milan meets two Jack Russell terriers that have suddenly turned aggressive toward each other after living together for years.

Cesar confronts a schoolyard bully who is terrorizing doggy day care, Hugo, a 3-year-old bulldog with a major mean streak. After a full day with him, Cesar realizes there is no quick fix for Hugo's aggression, so its off to rehab at Cesar's Dog Psychology Center.

A café owner needs help taming her hyperactive bulldog; Cesar tries to curb a German shepherd's incessant barking.

Cesar spends a week at Fort Hood, Texas, helping with undisciplined U.S. Army dogs: an Australian shepherd with a fear uniforms, a Shetland shepherd that barks at aircraft, and a miniature bull terrier with uncontrollable excitement.

Cesar help former gang members rehabilitate their problem pooches. Included: a pit bull with a habit of stealing food off the dinner table; a Maltese that nips and bites other dogs.

Cesar helps dog-phobic humans overcome their fears.

Cesar visits newlyweds whose two dogs are wreaking havoc on their love nest, then lends a hand to a couple who met online and feel nervous about introducing their dogs.

Cesar takes on three dogs with obsessions: Ringo, with a pinecone fixation, Abbie, who has problems with vacuums, opening the junk drawer, wine pouring, and Jäger who gets so excited in the car that it has become too dangerous to take him anywhere.

Cesar flies two lucky young fans to California to watch him use his techniques in person as young "Dog Whisperers" in training, ith an Australian shepherd/Chihuahua mix who has problems with strangers, and a red-nosed pit bull mix who with high anxiety when the boat she lives on encounters rough water.

Cesar helps Rescue dog owners with hounds from hell: Sammy, who cries around skateboarders and large dogs and Sahzi, who won't enter the kitchen or certain hallways. He also helps a mother and daughter choose the right dog to adopt.