Disney goes into holiday mode for Greg Heffley and his family for the first time. The Christmas holidays are turning out to be especially stressful for Greg this year. After accidentally damaging a snowplow while making a snowman with his best friend, Rowley, he worries he won't get the new video game console he so desperately wants for Christmas. To make matters worse, he gets snowed in with his family, including his grumpy older brother, Rodrick, and annoying younger brother, Manny.