Twelve Hours

Intro
Craig helps a struggling woman with her parcels in the reception area of a hotel; but when she enters the lift the doors close before Craig can follow her - so he runs up thirty floors of stairs to give her back her shopping.

Main Story
Sharron and Richard are acting as bodyguards to visiting Eastern European president Drobnic and his wife, and travel to Holy Loch in Scotland to inspect the submarine HMS Weatherby. A gang of saboteurs have planted a bomb on board, which explodes, killing the captain and injuring the president as well as sending the submarine down to the bed of the loch. Craig senses that his colleagues are in trouble and travels to Scotland to hunt down the saboteurs. Sharron, who is medically qualified, has to save the president's life whilst Richard assumes the responsibilities of the captain. Unless the 'Weatherby' can be refloated, there is only enough oxygen to last for twelve hours so Craig had better work fast.

Guest Cast

 * Mike Pratt as Raven
 * Peter Howell as Admiral Cox
 * John Turner as Lt. Cmdr. Street
 * John Stone as Captain
 * Viola Keats as Mme. Drobnic
 * Henry Gilbert as Drobnic
 * Laurie Asprey as Jackson
 * Rio Fanning as Telegraphist

Uncredited

 * Terence Donovan as Radio Operator
 * Harry Fielder as Submarine Crewman

Episode Crew

 * Casting By Judith Jourd
 * Art Direction By Charles Bishop
 * Makeup Department
 * Gerry Fletcher - Makeup Supervisor
 * Mike Jones - Hair Stylist
 * Production Management
 * Philip Aizlewood - Post-Production Supervisor
 * Malcolm Christopher - Production Manager
 * Second Unit Director Or Assistant Director
 * Denny Lewis - Assistant Director
 * Art Department
 * John Graysmark - Associate Art Director
 * Bill Greene - Construction Manager
 * Sid Palmer - Production Buyer
 * Brian Rider - Set Dresser
 * A.J. Van Montagu - Scenic Artist
 * Sound Department
 * Len Abbott - Sound Recordist
 * Claude Hitchcock - Sound Recordist
 * Roy Lafbery - Sound Editor
 * Special Effects By Sydney Pearson -
 * Stunts
 * Bill Sawyer - Stunt Arranger
 * Camera And Electrical Department
 * Harry Gillam - Camera Operator
 * Ted Hallows - Supervising Electrician
 * Costume And Wardrobe Department
 * Laura Nightingale - Wardrobe Supervisor
 * Music Department
 * Edwin Astley - Musical Director
 * Tony Hatch - Composer: Theme Music
 * Alan Willis - Music Editor
 * Other Crew
 * Annabel Davis-Goff - Continuity
 * Dennis Spooner - Script Supervisor