When Homer refuses to pull the car over and let Grampa go to the bathroom, the old man's kidneys explode. Out of guilt, Homer agrees to donate one of his kidneys to his father. But just before the operation, Homer, fearing he won't survive, flees the hospital and hops aboard a boat headed to an unknown destination. On the boat, he meets a group of lost souls who accept him until he reveals that he left his sick father waiting for a kidney. The lost souls throw Homer overboard and he realizes that he must go through with the transplant. As luck would have it, Homer gets run over by a car on the way to the hospital. When he wakes up in a hospital bed, he discovers that not only has he broken all of his limbs, but Dr. Hibbert has removed his kidney and given it to Grampa.