Nick Cutter and his team as they investigate anomalies in time found in the Forest of Dean. An unfortunate side-effect of the anomalies is that dinosaurs are moving through them and into the present time, making the team's investigations that much more stressful.
Set in London in 1958, Detective Inspector Michael Jericho of Scotland Yard is an accomplished detective enjoying celebrity status. He is assisted by faithful friend and colleague Detective Sergeant Clive Harvey and the young and ambitious Detective Constable John Caldicott. The series reflects the turbulent times of social upheaval of metropolitan Britain in the late 1950s.