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.