Mariners have long told stories of frightening beasts that stalk the coast of Florida, but new video could prove that old sailors were seeing real sea monsters. A forked tail, ferocious teeth and a large body were all characteristics of the historic sea monsters. Now, one Florida man says that not only has he witnessed these creatures on countless occasions, but he also has hours of video proof. Experts are divided over the controversial evidence that shows tantalizing glimpses of these strange sea creatures. One marine biologist claims it is a disfigured known species, another expert says it is a seal thought long extinct, and still others maintain that it is something altogether unheard of. Whatever monster lurks here, close to innocent vacationers, MonsterQuest will investigate.