Without any snow in sight and Christmas Eve tomorrow, Fawn Braun and the villagers of Pfeffernut gather and try to create snow.

So much snow has fallen in Pinkville that the kids can go sledding from the rooftops, but Pinkalicious' brother Peter is too afraid to sled from such a steep height.

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 neighborhood meltdown. When the snow clears, will Greg and Rowley emerge as...