'Storm at the End of the World' by Phil Ford

The Mysterons steal a Druzynik armoured tank from a Russian War Games exercise, and use its firepower to destroy the small town of Ragnarok; the entire population is massacred and then replicated under Mysteron control. Searching for the missing tank the following morning, Captain Scarlet and Captain Blue discover it lying abandoned in the snowy countryside; instantly suspicious, the two Spectrum agents decide to investigate the nearest town: Ragnarok. Unaware that the entire town is a Mysteron replica, Scarlet and Blue find its streets deserted; seeking shelter from the intense cold in a diner they help themselves to some coffee, but the pot is drugged, and both agents slip into unconsciousness. When they come to, Scarlet and Blue find themselves held prisoner in the local mine, where the townsfolk have been set to work digging at the rock face. Forced to join the workforce, Scarlet and Blue wonder what the Mysterons are digging for; they soon find out when an ancient meteorite is uncovered. The Mysterons inform the Spectrum agents that the rock contains lethal alien spores that have been in hibernation since the meteor crashed into the icy permafrost millions of years ago. The Mysterons plan to infect each of the townsfolk with the deadly spores, turning them into plague carriers that will infect and kill everyone on Earth in just four weeks…

Wayne Forester (Captain Scarlet), Robbie Stevens (Captain Blue), Mike Hayley (Colonel White), Julia Brahms (Captain Ochre), Jules de Jongh (Lieutenant Green), Nigel Plaskitt (Doctor Gold)

Directed by Mark Woollard
Executive Producer Gerry Anderson

TX:
UK (CITV):
29th October 2005 - shown in two parts within 'Ministry of Mayhem'

Notes:
*Featuring Captain Scarlet, Captain Blue, Captain Ochre, Captain Magenta, Captain Grey, Colonel White, Lieutenant Green and Doctor Gold