Terror of the Zygons is the first serial of the 13th season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 30 August to 20 September 1975. It was the last regular appearance by Ian Marter as companion Harry Sullivan, who would later return in The Android Invasion. It was also the last regular appearance by Nicholas Courtney as Brigadier Lethbridge-Stewart, although Courtney would return for guest spots as well.
An unseen force attacks and destroys an oil rig in the North Sea. In rural Scotland the day after the attack, the Doctor, Sarah Jane Smith and Harry Sullivan arrive in a small village where Brigadier Lethbridge-Stewart and U.N.I.T. are investigating the rig's destruction. Huckle, a representative of Hiberian Oil (the company which owned the rig) explains that three other rigs have been destroyed in similar circumstances in the past month. He leads the Doctor, Harry and the Brigadier to Hiberian Oil's headquarters, where survivors of the rig's destruction are having their injuries treated. Meanwhile, another survivor, named Munro, washes up on a shoreline.
Doctor Who: Terror of the Zygons is an album of music by Geoffrey Burgon of his music for the Doctor Who serials Terror of the Zygons and The Seeds of Doom. The CD was sourced from the composer's own copies of the score, recorded at a low speed, resulting in lower fidelity.
Terror of the Zygons
The Seeds of Doom