On this episode, Cesar meets Mambo, a Jack Russell mix with a Napoleon complex. He had so much energy his former owners couldn't control him and now resides in a shelter. Before presenting him to eligible families, Cesar takes him into his Dog Psychology Center and uses his pack to teach Mambo how to behave. After they meet Mambo, the candidates must show their skills at a park where Mambo would typically cause aggravation. Cesar must pick which family is best for this little bundle of energy.