Christmas comes to the haunted household of Button House in this festive special, and Alison and Mike prepare to host a family Christmas for the first time. Alison finds her phantom housemates less than filled with festive cheer, and learns that Christmas is never easy when you're dead. Mike comes up with a dubious plan to get his parents into the holiday spirit, while Julian is confronted by a new arrival, who forces him to relive memories of his life and come to terms with his past misdeeds.

Alison and Mike are trying to find a semi-harmonious routine with the ghostly housemates of Button House. The ghosts have found a way to make their new situation work for them, while the couple are working towards a new money-making venture.

After a night of partying, Alison and Mike scramble to clean up the house for a venue viewing, and Alison tries to find out why the ghosts are acting so strangely.

Alison and Mike grapple with the latest obstacle to nailing down an event booking, but they're stymied by the Captain's past coming back to haunt him.

Thomas goes down memory lane with Alison, however the truth is muddied when the other ghosts tell their version of events. Mike struggles with his own memories of Alison's past.

It's a nervous Mike's first night alone in the house, when some uninvited guests set the ghosts on a mission to defend their treasured home.

The big day at Button House has arrived, but some freak weather disrupts everyone's plans.