A discovery in the house leads Thomas to go down memory lane, but as Alison comes to realise, memory and reality don't always go hand-in-hand when ghostly witnesses are eager to tell their own versions of events.
While Alison and Mike gear up to make a big investment, the Captain and Kitty work with the other ghosts to solve an unfolding mystery before it's too late.
The spectres are touched to discover that Alison has given them each a Christmas gift, so they rack their brains to come up with a special present for her in return.
The big day has arrived at Button House, but freakish weather disrupts everyone's plans. Can Mike, Alison, and the ghosts rally to pull off what they've been working so hard to achieve?
It's Christmas Eve and the entire family is coming over to enjoy the imminent festivities. Everyone has the best intentions, but stress levels gradually rise, and there's seemingly only a matter of time until an epic blowout.
As Christmas approaches, Betty, Mike's mum, is staying with them. Despite her attempts to assist, Mike and Alison soon become frustrated with her intrusive behavior.