Isaiah and his dad have recently moved to a new flat, but now his dad is struggling to pay rent due to illness. Soon, the landlord threatens eviction. In history class, Isaiah is intrigued to discover that in the Victorian period, his school used to be a hospital and his flat block was once a workhouse. In the basement of the flats, Isaiah discovers an old fireplace. When he lights it, a boy called Jacob appears. He tells Isaiah he's been sent to the workhouse after his dad disappeared. But he wants to escape. Can Isaiah help Jacob even though he's from the past - and will Jacob help Isaiah to find a way to save his home?