Whistle-blower Debi alerts Cesar to the Dong family, who are scared of their first dog -- a black Lab mix named Misty. Cesar notices that Misty is showing signs of insecurity and suggests taking her to his new Dog Psychology Center. Next, Brad is having trouble with his sister Nicole's Shiba Inu mix, Auggie, who attacks Brad's dog at family outings. Cesar points out that their nervous energy leads to aggression in their dogs. Can he arm these siblings with the skills to end this canine rivalry?