圣诞老人（J·K·西蒙斯 饰）被神秘绑架，北极安保主管（道恩·强森 饰）不得已与全世界最臭名昭著的赏金猎人（克里斯·埃文斯 饰）展开合作，他们寻遍全球、打遍天下，力求拯救圣诞节。

The winter holidays are turning out to be especially stressful for Greg Heffley this year. After accidentally damaging a snowplow while making a snowman with best friend Rowley Jefferson, Greg 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...

　　黛比（瑞茜·威瑟斯彭饰）和彼得（阿什顿·库彻饰）是最好的朋友，但性格却截然不同。黛比渴望和儿子在洛杉矶过着普通生活；彼得则在不断变化的纽约奋力拼搏。他们决定交换房子并体验彼此的生活，一周后，他们发现自己向往的一切可能并不是内心真正需要的东西。