Primeval (2007)

S03E10 The Chase Continues

As Sarah and Becker confront a Megopteran invasion at Johnson's former headquarters, Danny, Connor, and Abby travel back to the future to thwart Helen's intentions. The three soon uncover the reality of Helen's grand scheme and find themselves in a frantic chase through the Anomalies to prevent her from eradicating humanity right from its inception.