999

Episode 9 (5x9)

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Tonight: how rescuers risked their lives on the sands off Southend to save a trapped teenager before the tide engulfed him; the detective work required to locate a lorry driver who has a mobile phone but can't use it to make anyone aware of his plight; and the chain of people who refused to allow a man to die after a crash broke bones in every limb of his body, injuries that later required 10 metal plates, 32 pins, 50 screws and six grams of gold.