Old Yeller-Belly

S14, E19: When the cat saves Homer’s life during a fire, while the dog flees like a coward, Snowball II becomes a hero, and the dog is chained outside the Simpsons’ house. There he is discovered by beer magnate H.K. Duff and turned into a corporate spokesmodel. The dog’s original owner, last seen in “Simpsons Roasting on an Open Fire,” learns of Santa’s Little Helper’s success and comes forward to reclaim him.