Doctor Who: The Mark of the Rani, Episode 2 on AllMovie

In the conclusion of the Doctor Who adventure "The Mark of the Rani," the title character, a despotic exiled Time Lady (played by Kate O'Mara), has materialized in 19th century England, where she is systematically draining the intelligences of the men behind the Industrial Revolution. In attempting to thwart the Rani, the Doctor (Colin Baker) must also contend with his old enemy the Master (Anthony Ainley), who is pursuing an agenda which could (as usual) spell the end of Civilization As We Know It. Written by Pip and Jane Baker, and largely filmed at Blists Hill, an open-air museum in Britain's Ironbridge Gorge, "The Mark of the Rani" was originally shown in two parts, the second of which aired on February 9, 1985; for American television, the two 45-minute episodes were subdivided into four 22-minute chapters.