As Coast Guard helicopter 6514 is buffeted by severe winds, rescue swimmer Laurence Nettles is lowered into the dangerous waters with one goal in mind -- save the lives of a family with an infant who are stranded in a damaged boat.

Cut off from outside help for days, the valiant medical staff at Lindy Boggs Medical Center -- which is cut off by rising floodwaters and cripped by a power failure -- fight desperately to keep more than 100 patients alive.

These and other real-life heroes risked their lives to save others during Hurricane Katrina, the most catastrophic natural disaster in United States history. You will never forget their courageous true stories.