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Episode 10 (3x10)

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Tonight, how a stroll in the Yorkshire countryside left a 65-year-old woman struggling to stay alive after she was bitten by adders, the only poisonous snake in the UK - followed by medical advice on dealing with snakebites. There's also the rescue of two rally enthusiasts whose car veered off a forest track and plunged down a 1,000ft ravine in South Wales.