The ghostly residents of Button House are adjusting to life without Alison and Mike, but when protesters disrupt the construction of the planned hotel, the ghosts need to find a way to reach their living friends.

When an amateur séance goes awry, Julian seizes the opportunity to leave the grounds in the body of teenage ghost hunter Jack. Whilst Julian experiences the outside world for the first time in decades, Jack gets a crash course in the afterlife from the ghosts. But what was supposed to be a temporary switch soon reveals the risk of permanent consequences…