'How do I begin?' Lacey thought. 'I want to ask you all sorts of personal questions, Mrs Fotheringayoh yes, I know you were once married because I saw you and your husband in a photo in an old bookexcept the photo was taken a hundred years ago, so it can't be youcan it?'
Following the death of her mother, fifteen-year-old Lacey Campbell, her father Alex and her younger brother Kieran, move to Denborougha small country town in regional Australia. There, Lacey meets Mrs Elspeth Fotheringay, owner of Gateway Cottage, whose photograph she discovers in a book about the railway an image taken a hundred years earlier.
Mrs Fotheringay soon reveals that Gateway Cottage is a time portal linking her home to the Denborough of 1914, when it was a karri logging town. Initially, Lacey doesn't believe this until the old lady shows her another photograph, taken sometime during 1914, which clearly shows Lacey's image.
Mrs Fotheringay convinces Lacey to travel back in time so she can take her place in the photograph. However, unbeknown to them, Kieran pursues them through the time portal into a summer heatwave in January 1914 but soon becomes lost in time...