During the night, Sideshow Bob reaches the houseboat and unmoors it from the dock. He ties up Homer, Marge, Lisa, Maggie and Santa's Little Helper so they cannot meddle with his plan. Sideshow Bob enters Bart's room, ready to kill him. Bart flees out the window and tries to escape, but he cannot jump off the boat since the river is filled with alligators and electric eels. Sideshow Bob catches up to Bart and offers him a last request. Having noticed a sign saying Springfield is fifteen miles away, Bart has an idea: to stall for time, he compliments Sideshow Bob on his beautiful voice and asks him to sing the entire score of "H.M.S. Pinafore". Bob delivers a performance that includes several props, costumes, and backdrops.