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 on BBC1 from 30 August to 20 September
1975. It was the last regular appearance by Ian Marter as companion
Harry Sullivan and Nicholas Courtney as Brigadier
Lethbridge-Stewart.The serial is set in and around Loch Ness and in
London. In the serial, the alien shapeshifters the Zygons plot to use
their cyborg sea monster the Skarasen to take over the Earth after
they discover their home planet was destroyed.The Fourth Doctor, Sarah
Jane Smith and Harry Sullivan arrive via the TARDIS in Scotland near
the North Sea where Brigadier Lethbridge-Stewart and U.N.I.T. are
investigating the destruction of oil rigs. The survivors' assertion
that the rigs were destroyed by a huge sea creature is corroborated by
giant teeth marks in the wreckage. Terror of the Zygons Biography, NetWorth, Height, Age, Weight, Family, Married, Son, Daughter