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.

While Alison and Mike gear up to make a big investment, the Captain and Kitty work together with the other ghosts to solve an unfolding mystery before it's too late.

Robin has a revelation that unnerves the ghosts and prompts them to consider their legacies. Alison and Mike decide to have a spontaneous wild night out.

Shocking news rocks Button House and a booking mix-up sees Mike and Alison forced to host a last-minute children's party that they are utterly unprepared for.

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

Mike and Alison receive an incredible offer far beyond their expectations. They must make a decision, the result of which will change their lives forever.

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.

While Button House is being fumigated for woodworm, Alison and Mike decide to save some money and camp in the grounds, sending the ghosts' routines off kilter.

Alison and Mike invite Barclay to discuss the land sale but are quickly forced to play hardball. Meanwhile, the ghosts become fixated on solving the mystery of Kitty's death.

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.

When the ghosts try to sabotage Alison's makeshift therapy session for Kitty, they unwittingly face their own demons. And Mike's desire to see the ghosts yields surprising results

With the B&B gone, Mike anxiously strives to fix their finances, but it's April Fools' Day, and a distracted Alison is out for revenge. The couple receive some life-changing news.

Can the Ghosts get back into Alison's good books after she gives them the biggest telling off of their lives/deaths? Alison and Mike learn that relaxation is harder than it looks.

Alison's attempt to win over their posh new neighbours with a swanky dinner party are thrown into chaos by Mary's woeful catering and Robin's desire to celebrate the lunar eclipse.

When a documentary team comes to Button House to investigate a historical assassination plot, Alison and the ghosts are shocked to discover that it involved one of their own.

Having lost their appetite for Food Club, the ghosts trial some new entertainment inspired by Pat. Disaster strikes as Mike and Alison host an important guest at Button House.

When the ghostly visions return to haunt Alison, Mike must reassure her that there is a rational, medical explanation – a comforting theory about which he could not be more wrong.

With Pat's family coming to commemorate his death, Pat begs Alison to pass on a message from beyond the grave, while she attempts to befriend the new builder.

Desperate for cash, Mike and Alison rent the house to a film crew making a period drama – a move that pushes both Thomas and the old house's floorboards to breaking point.

When Mike and Alison consider selling Button House to a hotel chain, the ghosts come up with some get-rich-quick schemes to help the cash-strapped couple.

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.

Mike and Alison reach boiling point over the B&B. Julian aims to prove he is more selfless than people think. A new addition triggers frightening flashbacks for Robin.

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.

A mysterious visitor arrives at Button House with a revelation that leaves Alison reeling. Mike has an epiphany on his first day at a new job, which causes Julian to remember his first day as a ghost.

Mary tells Julian how she finally found her voice, while Thomas decides he must finally kick his Alison addiction. Old friends of Mike share the surprising secret to their success.