It's the first time Mike has been left alone with the ghosts at night, but he assures Alison she should have a night out and let her hair down. The ghosts happily pass the time with music club, but they're interrupted by some uninvited guests. It becomes the ghosts' mission to try to alert Mike and figure out how to protect the house from the intruders.

It's Christmas at Button House, and Mike is determined to make it perfect for his family. Alison is also determined to deliver the best Christmas ever for the living and the dead, although the latter aren't filled with festive cheer. Christmas just isn't that much fun when you're deceased. But when Julian is confronted with past wrongs, he has a revelation that could help the ghosts rediscover the real message of Christmas.