Mary Jane despite her disabilities rescued lab-mastiff mix, Cujo, from a bad home. However, her chronic pain and stress may have turned Cujo into an aggressive dog. Cesar brings Cujo back to the Dog Psychology Center for some exercise, discipline and affection with his pack while bringing in an acupuncturist for Mary Jane. Ellen and Dave adopted Jack Russell-mix, Molly, and when Ellen brings her to the art gallery where she works, Molly barks and growls at the customers.