Oklahoma City firefighters undergo rigorous water rescue training, highlighted by the show "Hearts of Heroes," to prepare for emergencies where every second counts.

In 2014, Adam Walker jumped into the Cook Strait, New Zealand, to support a cause, not knowing a shark was lurking beneath him.

Even when he’s not at his day job saving lives as a local firefighter, Brian Saxon is hard at work in the family garage, honing a device he invented to help keep people alive.

A sudden flood swept aquarium fish into a sewer ditch, leaving them trapped in dirty water. This rescue mission gave them a second chance.

Green River in Utah. The local fire department and public works employees arrived in a kayak and threw the man a life vest and a rope. He was eventually pulled from the floodwaters and taken to a ...