Primeval - Season 1 - Eps 2: Underground Infestation
When a pest controller is attacked in the London Underground and landed in hospital poisoned with venom, Cutter, Claudia and the team investigate and discover the Underground is infested with giant, Carboniferous spiders. Cutter and the team soon learn that the true culprit is not the spiders, but a giant centipede, and they are sent in a race against time to get the centipede's venom after it poisons Stephen. Meanwhile, Connor gets thrown off the team after telling two of his friends about the Anomalies, and attempts to earn the team's faith back in the fight against the giant centipede. At the same time, Cutter's suspicions that Helen is alive on the other sides of the Anomalies increases.
About Primeval

Title: Primeval
First Air Date: 2007-02-10
Last Air Date: 2011-06-26
Status: Ended
Rating: 7.4/10 (from 302 votes)
Language: EN
Seasons: 6
Total Episodes: 36
Network: ITV1 U&W
Genres: Sci-Fi & Fantasy, Action & Adventure, Drama
Production Companies: Impossible Pictures, ITV Productions, M6 Films, ProSiebenSat1 Produktion, BBC America
Synopsis
When strange anomalies start to appear all over England, Professor Cutter and his team must track down and capture all sorts of dangerous prehistoric creatures from Earth's distant past and near future.
Cast

Ciarán McMenamin
Matt Anderson

Ben Mansfield
Hilary Becker

Andrew-Lee Potts
Connor Temple

Hannah Spearritt
Abby Maitland

Alexander Siddig
Philip Burton

Ruth Kearney
Jess Parker

Janice Byrne
April Leonard

Ruth Bradley
Emily Merchant

Ben Miller
James Lester