After enjoying life as a billionaire for a few days, Homer decides to throw a party before Burns returns. He heads to Moe's Tavern to buy some beer and invite his friends to the party. However, Moe informs Homer that he can not sell him alcohol on account of it being Sunday before 2:00 PM. After Homer is told the only way he could buy alcohol would be to sail out to international waters where there are no laws, he and his friends (including his son Bart) set sail in Burns' private yacht to throw the party there. Back at the Mayo Clinic, Burns discovers that he not only has all previously discovered diseases, but numerous new diseases the doctors have just discovered in him. However, the sheer number of diseases prevents any one disease from actually doing harm to him. This leads Burns to (incorrectly) conclude that he is indestructible, even though the doctors protest that even a slight breeze could disrupt the balance in his body.