This week, a bizarre accident leaves a 12-year-old girl fighting for her life underwater. Two British balloonists find themselves dangling helplessly over foreign terrain. And a Scottish fisherman is trapped under the wreckage of his boat.

This week, a six-hour ordeal at sea when a woman is trapped under a capsized boat, and how a skier survived a night in freezing conditions in the Scottish mountains.

Eight hundred miles off the west coast of Ireland a small aircraft was hit by lightning, leaving pilot Werner Soehlmann with no long-range radio, no navigational equipment and very little fuel.

One of tonight's reconstructions shows what happened that day when the man went into anaphylactic shock after he was stung by bees more than 100 times. The other two featured stories reconstruct a freak canoeing accident on the River Dart which tested the ingenuity of students at the scene, and the mountain rescue of an elderly woman with a broken arm, by a highly-trained dog.

Tonight, the helicopter pilot whose flying expertise was tested to the limit when he had to hover for more than 20 minutes dangerously close to a cliff face in order to rescue a climber with a broken neck. Also, the couple who nearly died from something they couldn't see, hear, taste or smell, and the dual race to free a man trapped by a leaking chemical container and stop the toxic liquid inside polluting the environment.

Tonight, a diving accident leaves a young woman at risk from the bends, and forces a helicopter to fly under the Tamar Bridge to get her to safety; the teenage boy speared by a javelin in a freak accident on a school sports field; and the cyclist who needed 718 pints of blood after he was run over by a lorry.

One of the reconstructions introduced by Michael Buerk in tonight's programme uses the actual recording of the lifesaving call the little boy made when his mother went into a coma. Also featured is the original video made by the London Fire Brigade as they raced to free the driver of a 17-tonne juggernaut balanced on the edge of a bridge.

Tonight, an improperly secured anchor leads to a massive search for two divers lost at sea off the Cornish coast. A woman makes a 999 call on her mobile phone while hanging upside down in her crashed car. And the complex rescue of two men badly injured by a lorry as they worked to replace old gas mains in a hole in the road.

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.