Spiders

Summary

MI5's mainframe has been hacked into. But Tom and his team think they have found a lead in the form of an I.T. teacher, so Zoe is sent undercover to get close to him and find out his secrets. Will they be able to stop the culprit before the inner sanctum is breached and every agents' identity revealed?

Guest stars

• Nicola Walker as Ruth Evershed
• Hugh Simon as Malcolm Wynn-Jones
• Rory MacGregor as Colin Wells
• John Salthouse as James Crowe
• John Hopkins as Anton
• Augustus Prew as Peter Ellis
• Christopher Fairbank as Gordon Blaney
• Jack Doolan as Jason Sweeney
• Enzo Cilenti as Carlo Franceschini
• Natasha Little as Vicki Westbrook