Returning to Earth after their mission of mercy to Senterra station, Jack Ryder and his friends arecontinuing to investigate his father’s disappearance, while hiding from the authorities in the vast metropolis of Central One.Complications arise when Lord Somersby makes his presence known in the 22nd Century and his involvement in the affairs of the Time-Travellers and his presence in 18th Century Scotland is finally revealed.With Nova hidden away in the Western Gate mental institute following his breakdown and Ossie from Senterra making an appearance after the destruction of the station, a spate of subsequent murders point to an assassin targeting members of the Oregon crew and anyone closely involved.Jack, Henry and Samira soon realise that everyone from the Oregon is in danger, especially the vulnerable Nova Mitchell, but can they help the young man before the dark forces close in?