The brutal reality of working in Britain's ailing emergency service has been laid bare by an eye-opening new documentary which shows how deadly delays have become commonplace.
Raw footage — captured during the darkest days of the NHS's busiest ever winter — shows overflowing A&E wards, with corridors jampacked of patients who have spent 20-plus hours waiting to be seen.
Cameras also capture the final hours of one man, following a critical delay in getting him the right treatment.
All of the hard-hitting clips were secretly captured by Daniel Waterhouse, a 30-year-old paramedic who bravely sacrificed his 999 career in order to expose the terrifying reality of life in the NHS.
Serving his last shift last week after resigning, he hopes his evidence, set to be aired by Channel 4 Dispatches on Thursday night, will 'help instigate change' and that 'something will be done'.
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Asked about his decision to blow the whistle, Mr Waterhouse, who was working for East of England Ambulance Service during the investigation, told the Sunday Times: 'It was a moral choice.
'And there's a caveat to that as well, because going undercover in those situations could be considered immoral and will draw criticism I'm sure.
'But I think patient safety...
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