>> molchanov: yep.oy, it doesn't work. >> alfonsi: we were given the sports equivalent of a side-line pass. our photographers circled beneath the surface, as free- divers tested themselves in four disciplines-- with, or without fins; with, or without the use of a rope to pull them down. going into this year's competition, molchanov held the world record in three of the four disciplines, and wanted to break them all. we watched as he prepared for his most ambitious a--e hegtofi >> judge: four, three, two... >> alfonsi: with judges looking on, he takes in his final breaths. he looks like a goldfish desperate for water. he's packing his lungs with air. then, slips beneath the water's surface, his whale-like monofin helping him fight buoyancy. >> judge: alexey molchanov, russia, constant weight. 131 meters, 4:10, world record attempt. >> alfonsi: at around 65 feet, he drops his arms to his side and enters free fall. his lungs are now a third of their surface size, and he stts tnk he is clipped to a dive lin