Doctor Who and the Silurians (1970): Cast & Plot

The story unfolds around a mysterious crisis at a nuclear-powered cyclotron facility hidden within caves beneath a remote moorland. The facility is experiencing unexplained power drains and a series of mental breakdowns among its staff, prompting urgent investigation by the Third Doctor and Liz Shaw. They are accompanied by the formidable Brigadier Lethbridge-Stewart, who is determined to get to the bottom of these eerie disturbances. The security chief, Major Baker, suspects that a saboteur is within the center, adding an element of suspicion and tension.