Producer Simon Boyce learns that Wakulla project leader Bill Stone's crew plans an all-out assault by divers Brian Kakuk and Matt Matthews on K Tunnel, a remote pipeline that stretches thousands of feet. But this may be the expedition's supreme moment, so Simon, associate producer Kevin Krug, and underwater videographer Wes Skiles strike out for Wakulla, leaving Boyd to finish his training on his own.
Nothing is left to chance.
Yet trouble plagues this mission. The divers' misfortune buys the camera crew much-needed time. Matt holds caving and diving records and had been the first human to brave any number of pristine caves around the world. He has no illusions about the risks. It's swapped on the beach and the duo enter the cave again.