The 100 mile stretch of crystal clear water just north of Miami, Florida is some of the most popular coastline in the country. But in 2017, locals and tourists fell victim to a mysterious rise in shark attacks. Over the course of the year, nine beachgoers were bitten. A team of investigators uncover clues in their search for the truth.

Jacksonville, Florida's amazing beaches are the best-kept secret in the South. But this peaceful paradise was rocked in 2015 and 2016 when twelve shark attacks defied the odds and left locals searching for answers. From surfers to swimmers, experts re-visit the circumstances of these attacks and search for answers.