When evolutionary zoologist Nick Cutter discovers prehistoric creatures alive and well in the present day, the natural world is turned on its head and humanity faces a threat to its very existence. Unexplained anomalies are ripping holes in the fabric of time, allowing creatures from the past and the future to roam the modern world. Cutter and his team battle to keep the looming disaster a secret while dealing with savage monsters, giant insects, prehistoric parasites and other deadly beasts. As if that weren't enough, Cutter has to deal with the discovery that his wife Helen, missing and believed dead for eight years has actually been travelling in time. She may have a possible solution to the riddle of the anomalies, but will she share it? Complete series 1; 6 episodes.