

The film opens with Greg Heffley opening his green book and writing about how his dad bothers him during baths, weather, and church. By the end of the intro, the Heffleys get ready to go to church. Meanwhile, Greg is taking too long in the bath, so his family ends up rushing him. He eventually gets out but he forgot his coat, so he had to use a key to unlock the door, something he fumbles at, which in turn results in him destroying the Christmas decorations. Frank rushes the famly to church, angering most people on the road. He rushes to find the nearest parking spot, which is intercepted by the Warrens.