After Bart and Lisa see Krusty the Clown broadcast his show from the Mount Splashmore water park, they pester Homer to take them there. While Marge and Maggie visit a wading pool for infants, Bart, Lisa and Homer line jump and ride an intense water slide called H2WHOA!. Because he is overweight, Homer gets lodged in the water slide mid-course. The park's rescue crew is forced to close the ride and remove the blocked section of pipe using a large crane, with Homer still stuck inside. That night, the news media poke fun at Homer's massive size during their coverage of his mishap at the water park.