When Huck Finn, Joe Harper and Tom Sawyer hide out Jackson's Island, aunt Polly and Mrs. Harper realise that the boys have run away from home. They go to constable Moeller and explained what had happened. The constable organises a seach party by steamboat. Because the boys aren't found, the villagers think that the boys have been drowned.They organize a special sermon church for them. The boys feel guilty and homesick, so they decide to surprise everyone by attending the sermon. (thetvdb.com)