Doctor Who (2005–2022) - Series 12: 4. Nikola Tesla’s Night of Terror

Name: Doctor Who (2005–2022) - Series 12: 4. Nikola Tesla’s Night of Terror
Description: 1903. Who or what is sabotaging Nikola Tesla's generator plant at Niagara Falls? And has this maverick inventor really received a message from Mars?

1903. Who or what is sabotaging Nikola Tesla's generator plant at Niagara Falls? And has this maverick inventor really received a message from Mars?