Primeval season 4

cast summary:
Andrew Lee Potts ...
Connor Temple (36 episodes, 2007-2011)
Hannah Spearritt ...
Abby Maitland (36 episodes, 2007-2011)
Ben Miller ...
Sir James Lester (36 episodes, 2007-2011)
Juliet Aubrey ...
Helen Cutter (23 episodes, 2007-2009)
Ben Mansfield ...
Captain Becker (23 episodes, 2009-2011)
Lucy Brown ...
Jenny Lewis (19 episodes, 2007-2011)
Douglas Henshall ...
Nick Cutter (16 episodes, 2007-2009)
Full cast and crew »
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Storyline
When strange anomalies in time start to appear all over England, Professor Cutter and his team have to help track down and capture all sorts of dangerous prehistoric creatures from Earth\'s distant past.