The legendary rivalry between the Hatford boys and the Malloy girls is still going strong, and the boys have a brand-new New Year's resolution: the girls can stay in town, but only if they play by the boys' rules. Their mother has strictly ordered them to treat the girls like sisters, but the Hatford brothers have a very different idea of what brotherly love looks like. There is just one major problem with their master plan to outsmart the girls. Young Peter Hatford does not quite understand the rules of the prank war. In fact, he actually likes the Malloy sisters! Peter sees absolutely nothing wrong with sitting in their cozy kitchen, eating homemade cookies, and casually answering all their questions about his older brothers' top-secret schemes. With a traitor in their midst, the boys' plans are bound to backfire in the most hilariously embarrassing ways possible. But when a massive blizzard traps everyone indoors, the rival teams might just have to put their tricks aside and figure out how to pull together. Get ready to laugh out loud at the high-flying humor, sneaky pranks, and unexpected friendships in this unforgettable neighborhood showdown.