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Dramatic real-life footage is captured by the rescuers themselves. A kayaker in New Zealand fights to save his drowning friend.

Dramatic real-life footage captured by the rescuers themselves. A caver tries to save his friend trapped in a flooding passage.

A freak accident severs a professional cyclist’s artery miles from medical help, a kayaker fights to rescue his friend who’s trapped upside down in white water rapids, and a backcountry skier is buried alive in a tree well.

Tourists struggle to stay afloat and find loved ones after a capsize in rough seas. Friends search for an expectant father who lost control of his BMX and plunged off a cliff.

Dramatic real-life footage captured by the rescuers themselves; a team sent to recover bodies from a sunken wreck finds one man still alive.

A rescue team fights through a storm to reach a fisherman whose hand has been ripped through a winch; and a crevasse opens up under a group of climbers.