Primeval

Primeval is a British science fiction television series produced for ITV by Impossible Pictures. Primeval follows a team of scientists tasked with investigating the appearance of temporal anomalies across the United Kingdom through which prehistoric and futuristic creatures enter the present, while simultaneously trying to stop a terrorist plot to bring about the end of the world. Primeval was created by Tim Haines, who previously created the Walking with... documentary series, and Adrian Hodges. It ran for five series, originally broadcast from 2007 to 2011.