The Simpsons Episode 319 Dog of Death Episode Title:Dog of Death.Episode Description:Santa's Little Helper (SLH) falls ill and the family must make budget cuts in order to pay for his operation. Although the dog's life is saved, the family begins treating him badly so he runs away. SLH ends up in the possession of Mr. Burns, who trains him to become a vicious attack dog. Bart stumbles across the new SLH and is attacked, but SLH recognizes Bart and decides to stop the attack.