Drakelow Tunnels - S15.E8

With over 4 miles of haunted tunnels the team have one night to investigate this labyrinth of horror. Alone in the dark with no chance of escape until the night is completed the team are faced with countless spirits that refuse to leave, a lost soul that lurks in the shadows waiting to jump out at any unsuspecting visitor and a particularly nasty poltergeist that is said to be very unhappy with anyone entering its space.