"The Way of the Dog" is the 22nd episode of the 31st season of "The Simpsons". It is the last episode of the 31st season. It was first shown on television on May 17, 2020. In the episode, Santa's Little Helper bites Marge. The Simpson family look back to the dog's history before the family got him. They take Santa's Little Helper back to his mother so that he does not have to be euthanized.