on a slick canadian cliff face, a polar bear rescue slips wildly out of control and it's all caught on camera. >> once i saw the bear hanging upside down by it foot, i was in shock. >> april, 1996, st. john's newfoundland. a polar bear hitches a ride to town on an arctic ice flow and decides to camp out on a cliff just steps away from a fishing village. >> we allow a polar bear to walk through an area, especially a populated area like st. johns because it will encounter people. >> when the people of newfoundland need help with wild animals, they turn to 30-year wildlife enforcement veteran bill collins. >> i received a call at my office that there was a polar