Bart and Lisa find an "alternate ending" to Casablanca. After Ilsa plane takes off, Captain Renault and Rick Blaine walk off into the fog, and Rick delivers his "Louis, I think this is the beginning of a beautiful friendship" line. Renault stops and pulls out a gun. Sam appears and pushes his piano into Renault, knocking him out. Adolf Hitler then pops out of the piano, and threatens Sam and Rick with a grenade. Ilsa, having jumped out of the place with a parachute, lands on the piano top, trapping Hitler inside as the grenade explodes. Ilsa and Rick marry, and "The End?" flashes on the screen.