This programme focuses on accidents. 'It takes all sorts,' says Nurse Kim. 'You'll find people who think "I'm only nipping up a ladder so I'll hold a cup of tea, a drill, something round my neck, one sock on and a flip flop."' Construction worker William has been trapped under a cherry picker, breaking his leg in three places and crushing his chest. Nick has fallen from a ten-metre ladder onto concrete, landing on his head, resulting in a severe brain injury. It's a matter of life and death, and his brother, Nigel, waits nervously at his bedside. Darren has fallen through a window while trying to clean it, cutting his arm badly. It's not the first time he's been seriously injured: he had head injuries as a teenager when he was knocked over by a moped. Meanwhile, Wilfred, who lives alone after his wife died, has had a nasty accident with a mandolin while cutting vegetables. And good-natured Alex, who once dived onto a railway track to save a woman, has been headbutted by someone trying to steal his wallet and mobile phone.