Operation Deep-Freeze

Plot
A party of scientists from the Scott Base in Antarctica, sent to investigate an explosion, goes missing, as do two subsequent search groups, and Richard and Craig are sent to investigate. They find the body of one of the men from the search parties shot dead in the snow and send a telepathic message back to the main base. They are however captured by a crazed Latin American dictator, Gomez, who is behind the nuclear explosions and who aims to hold the major governments to ransom with threats of nuclear detonation. He locks the lads in a deep freeze room but they are able to tele-communicate with Sharron back at Nemesis headquarters by transferring their feelings of extreme cold to her. She tells Tremayne to send a message to the main Scott Base but he is reluctant and it looks as if it is down to her to save her colleagues from an icy death.

Trivia
The episode takes it's title from the codename for a series of United States missions to Antarctica. Given the continuing and constant US presence in Antarctica, "Operation Deep Freeze" has come to be used as a general term for US operations in that continent, and in particular for the regular missions to resupply US Antarctic bases, coordinated by the United States military.

Gust Cast

 * Patrick Wymark as Gen. Gomez
 * Robert Urquhart as Hemmings
 * Walter Gotell as Captain Jost
 * Peter Arne as Margoli
 * Dallas Cavell as Ship's Captain
 * George Pastell as Col. Santos
 * Michael Godfrey as Mendoza
 * Martin Boddey as Gregson
 * Derek Sydney as Major Zerrilli
 * Alan White as Hoffner

Uncredited

 * Earl Green as Major Zerrilli's Henchman
 * Salmaan Peerzada as Man in Helicopter

Episode Crew

 * Casting by Judith Jourd
 * Art Direction by Charles Bishop
 * Makeup supervisor: Gerry Fletcher
 * Hair stylist: Patrick Grant (as Pat Grant)
 * Post-production supervisor: Philip Aizlewood
 * Production manager: Malcolm Christopher
 * Second unit director: John Hough
 * Assistant director: Ken Softley
 * Associate art director: John Graysmark
 * Construction manager: Bill Greene
 * Production buyer: Sid Palmer
 * Set dresser: Brian Rider
 * Scenic artist: A.J. Van Montagu
 * sound recordist: Len Abbott
 * sound recordist: David Bowen (as Dave Bowen)
 * sound editor: Alan Corder
 * Special effects: Sydney Pearson (as Sid Pearson)
 * Camera and Electrical Department
 * Camera operator: second unit: James Allen
 * Supervising electrician: Ted Hallows
 * Camera operator: John Winbolt
 * Wardrobe supervisor: Laura Nightingale
 * Musical director: Edwin Astley
 * Music editor: Deveril Goodman
 * Composer: theme music: Tony Hatch
 * Continuity: Isabelle Byers
 * Script supervisor: Dennis Spooner