20 min
Overview
In 1973, eight world-class divers entered a "bottomless" Australian sinkhole known as The Shaft. What began as a record breaking attempt turned into a claustrophobic nightmare. Trapped in pitch black water with failing air and a disorienting "mirror effect" on the ceiling, they faced the deadliest cave-diving accident in history. This is the haunting true story of survival, nitrogen narcosis, and the tragic price of exploring the unknown.
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