BEAT THE BAND: A blacktip shark in Florida didn’t buy the hype surrounding a wristwatch-like product called Sharkbanz. Say it out loud, kinda slowly, and you’ll get the essence of the band’s alleged role in life.

Now, enter the water with high schooler Zack Davis, your average fanatical Florida surfer, who favors the waters of Avalon Beach State Park on North Hutchinson Island. Zack knows waves. He also knows sharks, from years of fishing them with his brother, Zane.