After escaping Tudor England with little more than the shirts on their backs, the New World's remaining crew face a wilderness with no guides, no friends, no map. All Tim Norris' hopes for their future seem dashed. Desperate to avoid losing the friends he has left, his past, at least, will not leave him alone. He turns to the one man who might help, but James Douglas has problems of his own. Back in the Cretaceous Period, the Schultzes' problems are of their own making. A whiff of rebellion is in the air as the colonists tire of paying the price for their leaders' private vendettas. Together, Heidi and her grandfather continue intriguing to corrupt an innocent future timeline, but while mutiny and mutual distrust lead Heinrich to make private deals with devils, Heidi's fury brings the entire planet to a tipping point. " (The Long Earth, Doctor Who) (Primeval, Doctor Who) (Walking With Dinosaurs)