"Raging Abe Simpson and His Grumbling Grandson in 'The Curse of the Flying Hellfish'" (or also known as The Curse of the Flying Hellfish) is the 22nd episode of The Simpsons' seventh season. It originally aired on the Fox network in the United States on April 28, 1996.
In the episode, one of Abraham "Grampa" Simpson's fellow World War II veterans, Asa Phelps, dies, leaving him and Mr. Burns as the only living members of Grampa's war squad, the Flying Hellfish. In the final days of the war, the unit had discovered several paintings and agreed on a tontine, placing the paintings in a crate, and the final surviving member would inherit the paintings. As Mr. Burns wants the paintings as soon as possible, he orders Grampa's assassination. To escape death, Grampa moves into the Simpsons' house, where the family lets him live in Bart's room. Bart eventually joins Grampa in a daring mission to recover the paintings.