This is the moment a wildlife cameraman came face-to-face with a fierce 1,000kg polar bear looking for its next meal. The eight-foot predator repeatedly attacked the perspex cage housing Gordon Buchanan as he films a new series.
For almost 45-minutes the Scottish filmmaker endures the polar bear's sustained assault as it desperately looks for a weak spot in his pod. The bear, with its powerful paws and giant teeth, was trying to get hold of the 40-year-old so she could feed herself and her two young cubs.
There's an interview with Mr Buchanan here.
The Polar Bear Family & Me starts on Monday 7 January at 21:30 on BBC Two.