海底大揭秘第三季是由Sophie,Elwin-Harris执导的一部拍摄于2020年纪录片,历史,记录片在美国上映，主演由未知领衔。　　By scanning the locations at the bottom of the ocean where sunken ships, treasures and even cities lie, the show tries to answer what they look like, how they got there and if they hide any secrets