« "My name is Professor Nick Cutter. Eight years ago, my wife Helen disappeared; I discovered she had stepped into the past through ruptures in time called Anomalies. Now creatures from the past threaten the future of the human race. There's only a small group of people who know the truth: my research team - Stephen Hart, Connor Temple, and Abby Maitland - and government officials James Lester and Claudia Brown. I returned from the past to find something has gone terribly wrong, and Claudia Brown has vanished, as though she was never even born. I've come back to a different world. And Helen and I are the only two people who know it!" »
Series 2 of Primeval is the second series of the original British Primeval television programme. Series 2 focuses on the effects on the relationships of, and emotional challenges on the team, primarily Nick Cutter's struggle to cope with losing Claudia Brown, and on Helen Cutter's and Oliver Leek's mysterious plans.
After returning from the past to find that Claudia Brown has been erased from time, Nick Cutter is forced to cope with other changes, including that the team are now their own Anomaly-combating organisation called the Anomaly Research Centre. Just when Cutter finally begins to come to terms with losing Claudia, a new PR guru joins the ARC; Jenny Lewis, who is physically identical to Claudia Brown but temperamentally is a completely different person.
Meanwhile, though Cutter believes that Stephen has gotten over Helen's betrayal, Stephen has in fact begun seeing Helen again and is becoming torn between her and Cutter; while Connor begins dating the mysterious Caroline Steel. Abby doesn't trust Caroline, and her and Connor's opposing opinions on her begin to drive a wedge between them. Unbeknownst to anyone, Caroline is secretly spying on Connor for the mysterious Oliver Leek, who has a secret agenda of his own for the Anomalies alongside Helen.
After the ARC team learn of Leek's and Helen's secret plans to use a creature army that they have captured to create chaos in the present, they are forced to try and stop the creatures from escaping onto the modern world. Helen, Nick and Stephen manage to trap and kill the creatures, but Stephen loses his life in the process. In the aftermath, Cutter finally accepts that Claudia Brown is gone forever and moves on with Jenny, while Helen promises that things will change with her clone army.
After a teenager mysteriously disappears, the ARC team investigate, and narrowly save Jenny from death at the jaws of a highly evolved shark. After another marine creature snatches Abby, the team frantically searches for her before she's taken to the Future.
The team gets kidnapped by Oliver Leek, who is using an army of creatures he has captured from the Anomalies. His ally, Helen has her own plans. The creatures get released in the concrete menagerie and the team has stop them