Whistle-blower Brent is desperate for help with his aggressive pit bull, Titan, who is destroying his relationship with girlfriend, Aileen, who saved Titan from the side of the road. Next, Cesar meets whistle-blower Debbie and a group of dog owners who are concerned about their good friend Marilyn's aggressive Italian mastiff mix, Cupid. Cupid began attacking other dogs at the park once Marilyn recovered from a fight against cancer. Cesar is ready to help Marilyn and Cupid get their park on!

Cesar comes to the rescue of a dog that the neighborhood thinks should be put down because it has bitten every member of its family. Next, a brother and sister are having their relationship torn apart by their fighting dogs.

Lori Jo and Patti are fed up with their boss Takis's three unruly bichons frises who constantly disrupt business by barking obsessively, knocking over trash cans and even honking the delivery truck's horn! Cesar must convince Takis to change his ways so that his beloved dogs will stop terrorizing everyone around them. Cesar then heads to the Freedom Writer's Foundation where the workplace is being disrupted by boss Ms. G's Labrador retriever, Beau.

Josh needs Cesar's help with his neighbors Lilly and Nadav, who have no control over their aggressive boxers. These dogs terrorize their neighborhood and have attacked more than 15 other dogs. Next, Cesar meets with Lorraine, a dance instructor who is greatly concerned for her pregnant business partner Stefanie's fearful and aggressive Chihuahua, Nuts. Cesar invites Stefanie and her husband to his home training annex where he teaches them how to create boundaries for Nuts.

College football coach Steven has recruited Cesar to help tackle a major problem: he is concerned that one of his star football players, Steve, is putting his future at risk for his aggressive Rottweiler, Shadow. Shadow has attacked two dogs in the neighborhood and Coach Steven is afraid if the dog attacks again, Steve could be held responsible. Cesar then meets up with Eric, who wants help for his brother Kevin's Doberman pinscher, Bowerman.

Whistle-blower Arturo is fed up with his neighbors Jim and Sam's powerful American bulldog/boxer mix, Matilda, attacking dogs in the neighborhood. He invites them to his Dog Psychology Center to further rehabilitate Matilda and train Jim and Sam to be better pack leaders. Cesar's next call comes from whistle-blower Rose, who is extremely concerned for her friends Diana and Joe's dog, Tosha, who attacked Rose so severely that the bites left her arm scarred.

Cesar is called to train an aggressive bulldog who’s bitten a couple’s son three times and brought their marriage to the brink of divorce.

Cesar takes on an aggressive German shepherd whose owner has been banned from his own family functions and a couple whose toy dogs could get them evicted from their pet-friendly apartment complex.

Cesar takes on a veterinarian, whose own pit bull is harassing her clients and a Bel Air couple, whose posh poodles are stunting their social life.

Cesar visits a woman who has called about a neighbor's wire fox terrier, Toby, who is causing trouble in the neighborhood.

Cesar struggles to save a vicious German Shepherd from being put down and a loud, excitable Miniature Schnauzer from being kicked out of day care.

Cesar struggles to train two aggressive St. Bernards that their owner can’t control, and a poodle that is ruining a 20-year friendship.

Cesar fights to save a ferocious Pit Bull from attacking other dogs and a troublesome terrier from instigating attacks on himself!

Cesar takes on an aggressive Weimaraner who bit a neighbor and her dog, and is close to being taken away by Animal Control and put down.

Cesar comes to the aid of two dog owners whose aggressive pooches have alienated them from their closest friends at their local dog parks.

Cesar comes to the aid of Leslie and her son, Si, who rescued their Great Dane, Junior. Junior has already bitten two people and Leslie is terrified that Junior will one day seriously hurt someone, and that he will get euthanized. Cesar's next case concerns two sisters whose relationship is in jeopardy due to one of their dogs. Taylor's Maltese mix, Chloe, seems to have it in for her pregnant sister Morgan.

Cesar confronts two women who unwittingly have been triggering aggression in their dogs, but refuse to admit to it.

Cesar rushes to the aid of Joe, whose teenage daughter, Sydney, has a highly aggressive pit bull that has attacked other dogs. Can Cesar save the day?

Cesar helps the Seinfeld family with their two dachshunds, Foxy and Jose. One is insecure and the other is over-excited. Plus, Cesar teaches leadership skills to two women who want their aggressive Jack Russell to be welcomed into the surrounding dog-loving community.

Cesar teaches leadership skills to a woman, whose French Bulldog/Boston Terrier mix Simon viciously attacks other dogs and animals. Plus, Cesar helps a family to provide leadership for their over-protective Tibetan Terrier named Schnoopy.

A father and daughter contact Cesar about the family dog, a pug named Gio, who has viciously attacked the family's five other dogs and their daughter. Mom is babying Gio because she feels sorry for him. But is Gio the right fit for this family? Cesar's next call is from a woman concerned for the safety of the animals on her sister's ranch after Bodie, a rottweiler/German shepherd mix, killed several goats and started going after the horses.

Cesar visits San Diego to meet Dingo, an aggressive Afghan Kuchi brought back from an army base in Afghanistan. Cesar works to acclimate Dingo around other dogs, and sends the owner’s wife — who can barely control the dog — to work on her energy. Next, Cesar meets a couple that cannot control their three large dogs Bella, Dozer, and Louie. They hope to one day start a family, but right now their chaotic home is no place for a baby!

Cesar meets pit bull mix Ivy, an escape artist who gets out of harnesses and jumps over the double walls of their house when triggered by loud noises.

Cesar meets a golden retriever, Captain, who’s ruining his owner’s retirement, and works with a couple who can’t manage their Terrier mix, Roxy.

Cesar works with a couple who are concerned that their daughter’s pit bull, Luna, has become a menace to the family. He then works with a makeup artist and hairstylist whose Sheltie, Belle, barks constantly whenever she picks up a blow-dryer, curling iron, or other small appliance, preventing her from having clients come to her home.