The Pajanimals have had fun building pillow and blanket mountains in their room, but things have become a great mess. Their mother tells them to clean up, but they decide it's not worth it since things will just get messy again. That night, Mom is annoyed with them and Cowbella can't find her Princess Lucy unicorn. They visit the Land of Build-It, where Hank and Frank help them to see why cleaning up their messes is important.