Raging Abe Simpson and His Grumbling Grandson in 'The Curse of the Flying Hellfish' (S07E22)

Grampa reveals that he stands to inherit a small fortune as the last survivor of his old army unit - assuming Mr. Burns dies before he does. Burns and Grampa tussle over the treasure, until the U.S. government arrives on the scene to return it to its true owner. (Prime Video)