Fisherman jumps on a thrashing whale's back to save its life

The sight of a massive humpback whale thrashing in the sea doesn't usually elicit an invitation to splash around with him.

Humpbacks can weigh in at a whopping 40 tons and stretch 50 feet from nose to tail. That's the kind of heft that easily overturns small boats. And woe to anyone who should jump on the back of one of these behemoths.

But that's just what Sam Synstelien did when he saw a humpback in distress in Central California's Morro Bay this week. The animal was hopelessly tangled in a rope that was attached to a buoy.

Synstelien, along with crewmate Nicholas Taron, had already tried reporting the unfortunate whale to the U.S. Coast Guard — but they were told it would be hours before rescuers could be dispatched.

Hours, the commercial fishermen figured, this whale didn't have.

"If we wanted the whale to survive we had to go get it," Taron later told Inside Edition. "We thought there was no other option for the whale; we decided to go for it. We were so pumped up full of adrenaline, I don't think we were that scared."

Easy for Taron to say, of course. His role in the rescue was mostly in the enthusiastic cheering department.

In the clip, you can hear him quarterbacking the operation from the side of the boat while filming the entire operation.

"Swim! Swim!" he yells. "Move! Just get it! Get it!"