The Cat - S1.E19

Gary takes the cat to the vet thinking he's not feeling good. He is obligated to leave him there overnight, but rushes to the clinic in the morning for the paper, only to find out it's not there (nor is the cat). The cat mysteriously appears at Eunice's (the vet's mother) house with the paper, and Gary wonders if the cat decided to abandon him. He later finds out that the cat only wants him to save Eunice, who was madly in love with Lucius Snow 40 years ago and is now dying from cancer.