It’s wintertime in Aberdale and Clarence is convinced his winter wish for snow in Arizona will come true! However, his classmate Belson along with his grumpy cousin Gary Mooch are a little tougher to convince.

Clarence is determined to throw the sleepover to end all sleepovers, his biggest party yet! There’s only one thing missing, guests! Clarence sets out to invite all his friends in town, but finds that they might need some convincing.