>> this is the great white's territory, its turf. seemingly trapped, the divers are terrified. >> i moved to the side where i knew that there was a trap door and slid that open. i basically sprung out of the water. >> within seconds, the divers turn almost certain death into a dramatic escape. >> the shark was able to shake loose the cage. the dive masters were able to just pull me completely right out of the water. >> i was out of the water on the swim step, and i just remember distinctly, whooo! >> a moment like that happens, time really slows down. it was like it happened for ten minutes instead of 15 seconds. >> the divers feel it just