Middle-schooler Greg Heffley is the prime suspect when it is discovered that school property has been damaged, but when a surprise blizzard hits and school is closed, Greg is stuck indoors with his family, unable to prove his innocence.

Santa's Workshop Holiday Spectacular at the Colchester mansion is a long standing tradition in Cedarville, however Griffin, Ben, and Antonia are not happy to find that they have been volunteered as elves by their friend Logan and can not get out of it--but this year the pageant seem plagued by frequent electrical outages, and during one of them the valuable antique known as the Star of Prague disappears from the giant Christmas tree, and as they are...