A diver ignores an instructor's advice and proves that his dive skills are dwarfed by his ego.

Inadequately trained divers make an inadequately planned wreck penetration and suffer the consequences.

An experienced instructor pays the price for making a rookie mistake.

Jesse's wayward ascent ends abruptly when he collides headfirst with the bottom of the dive boat.

Bill pushed the flying-after-diving rules just enough to wind up in a recompression chamber.

Trapped in the surf zone and unable to fight the waves, Mike thought his dive couldn't get any worse. He was wrong.

Overconfidence kills. But sometimes, when you're lucky, it just leaves you unconscious and bleeding.

A heavy equipment load and a malfunctioning BC add up to extreme danger for one unsuspecting diver.

Lessons For Life: Eager to dive before her training was complete, Abby found herself in a life-threatening situation she wasn't prepared to handle. Learn from her mistakes and avoid this tragedy.