When snow shuts down Greg Heffley s middle school his neighborhood transforms into a wintry battlefield Rival groups fight over territory build massive snow forts and stage epic snowball fights And in the crosshairs are Greg and his trusty best friend Rowley Jefferson It s a fight for survival as Greg and Rowley navigate alliances betrayals and warring gangs in a neighbourhood meltdown When the snow clears will Greg and Rowley emerge as heroes Or will they even survive to see another day The world has gone crazy for Jeff Kinney s Diary of a Wimpy Kid Sun