Planet of Fire is the fifth serial of the 21st season in the British science fiction television series Doctor Who, which was first broadcast in four twice-weekly parts on BBC1 from 23 February to 2 March 1984.
The Master re-established the psychic link with Kamelion and has manoeuvred him to Sarn so that he can take advantage of the restorative powers of the numismaton gas within the fire mountain.
Turlough realises the imminent volcanic bursts will destroy Sarn, so he uses a communication unit to get in touch with Trion and plead for a rescue ship to evacuate the planet.
Escaping the destruction of the gas control room in the TARDIS along with Peri, the Doctor lands to pick up Turlough, only to find that he has elected to return to Trion.
Promotional photographs taken during production include a shot of Peter Davison wearing a tuxedo and holding a gun, with Nicola Bryant standing next to him in a bikini, in the style of James Bond.
[6] Writing for Radio Times, Patrick Mulkern gave the serial three stars out of five and observed that writer Peter Grimwade "laces his script with homosexual subtext", noting in particular the "male eye candy on display", arguing that "old sage Timanov’s mentoring of callow youth Malkon has a hint of pederasty" and also commenting on the "unmistakably phallic object" hauled from the seabed and fondled by Howard, Curt and Peri.
[8] Paul Cornell, Martin Day and Keith Topping, authors of The Discontinuity Guide, thought that new companion Peri made a good impression, helped by some decent lines.
The DVD was released in June 2010, with commentary by Peter Davison, Nicola Bryant, Mark Strickson and Fiona Cumming, as part of the box set Kamelion Tales along with The King's Demons.