Please note this is a region 2 DVD & will require a region 2 (Europe) or region Free DVD Player in order to play Unseen in the UK for 45 years – marvellously restored & remastered & brought back to life for you to own on DVD The TARDIS narrowly avoids becoming engulfed in a cobwebby substance in space It arrives in the London Underground railway system the tunnels of which are being overrun by the web & by the Great Intelligence&s robot Yeti The Intelligence&s goal is to drain the Doctor&s mind; can the Doctor sabotage the device before the Intelligence’s plan comes to fruition?