Terminus is the fourth serial of the 20th season of the British
science fiction television series Doctor Who, which was originally
broadcast in four twice-weekly parts on BBC1 from 15 to 23 February
1983.In the serial, the alien time traveller the Fifth Doctor (Peter
Davison) attempts to stop the fuel from a plague spaceship called
Terminus from exploding and causing the destruction of the
universe.Terminus is the second of three loosely connected serials
where the Black Guardian (Valentine Dyall) compels the alien Vislor
Turlough (Mark Strickson) to kill the Doctor. It marks the final
regular appearance of Sarah Sutton as companion Nyssa. Terminus (Doctor Who) Biography, NetWorth, Height, Age, Weight, Family, Married, Son, Daughter