The Miami Herald is calling it Jaws V, and it sounds like a movie script:

The two-man crew of a shrimp boat works nervously as a school of sharks circles the vessel, slamming into the hull. Suddenly, a 14-foot bull shark tears into the stern, breaking the boat’s tail shaft and leaving crew adrift 100 miles off shore–with the boat now taking on water.

But this was no big-screen fiction. Read all about the narrow escape here.