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A series of unexplained Fireflash airliner disappearances sees Thunderbird 4 being called to rescue a crew stranded on the ocean floor. International Rescue then volunteer its services in helping to diagnose the cause of the mechanical fault.
First Air Date : Sep 30, 1965
Last Air date : Dec 25, 1966
Episode : 32 Episode
Season : 2 Season
Runtime: 50:14 minutes
Studio: Associated Television
Crew: Reg Hill (Producer)
