Sean and Tara find out that their grandfather's sister and her family are about to be evicted from their small home on a castle estate in Ireland. Then they discover something even more shocking: the family should actually be living in the big castle and own the whole estate, but they were swindled out of their inheritance by an evil relative. In order to amend the wrongdoing, the kids have to use their grandfather's secret time portal to find the original will before the castle is sold off and it's too late to change anything. And they must do it all while trying to avoid the ghosts that constantly roam the castle, as well as escaping the clutches of the evil relative who wants to stop them…
