Disgusted that a family with three girls moves into the house across the river, nine-year-old Wally and his three brothers declare a practical joke war on the girls.

The Hatford brothers cannot imagine spending Thanksgiving dinner with the Malloy sisters as the practical jokes and rivalries between the two families continue. Sequel to "The Girls Get Even."

Despite a New Year's resolution to be nice to their neighbors the Malloy girls, the Hatford boys find themselves continuing their rivalry and war of practical jokes.

Once again the Hatford brothers and the Mallory sisters find themselves pitted against each other when embarrassing pictures of the boys turn up in the girls' basement, and the boys try to figure out how to get them back.