Doctor Who - Season 3 - Eps 12: The Sound of Drums (2)
Harry Saxon becomes Prime Minister and his reign of terror begins – but that's only the start of his ambitions, as he announces mankind's first contact with an alien race, the Toclafane. An audacious plan spanning the whole of time and space begins to close around the Earth, in the penultimate episode of Russell T Davies's Doctor Who.
About Doctor Who

Title: Doctor Who
First Air Date: 2005-03-26
Last Air Date: 2021-12-05
Status: Ended
Rating: 7.5/10 (from 3097 votes)
Language: EN
Seasons: 14
Total Episodes: 153
Network: BBC One
Genres: Action & Adventure, Drama, Sci-Fi & Fantasy
Production Companies: BBC Cymru Wales, BBC Studios, CBC
Synopsis
The Doctor is a Time Lord: a 900 year old alien with 2 hearts, part of a gifted civilization who mastered time travel. The Doctor saves planets for a living—more of a hobby actually, and the Doctor's very, very good at it.
Cast

Jodie Whittaker
The Doctor

Mandip Gill
Yasmin 'Yaz' Khan

John Bishop
Dan Lewis