In April 2013, a fishing vessel was attacked off the coast of South Africa, killing all on board. A TV crew documented Marine Biologist Collin Drake as he worked to determine the predator responsible. His discovery is presented in this shocking footage. 　　注：这是一部伪纪录片，巨齿鲨在两百万年前已经绝种，至今为止没有任何科学证据证明巨齿鲨仍旧存在。