Combining undersea exploration with innovative visualizations, DRAIN THE OCEANS reveals hidden evidence of amazing undersea mysteries.　　Not “artists impressions” but what is actually there — down to the very last rivet. And, for its fourth season, it embraces a gripping new style, telling stories purely through the words of explorers and archaeologists, putting viewers right by their side.　　Episodes include…　　1.The Wild West　　2.The Battle for the Black Swan　　3.Arctic War　　4.Hollywood　　5.The First Americans　　6.Venice's Lost Empire　　7.The Mississippi River　　8.Hurricane Apocalypse　　9.The Great Barrier Reef　　10.Sea of Secrets

　　《海底大揭秘》揭开了我们的大海里隐藏的秘密和失落的世界。这一创新系列运用突破性的技术、惊险的摄影和顶级海洋考古学家的评论，对人类文明的史诗和地球本身的深层历史提供了深刻的新见解，揭露了沉没的城市、沉船、宝藏和深海令人惊叹的自然奇观。　　S5 E1 - The Secrets of Pompeii's Dead　　Directed by Vicky Matthews　　S5 E2 - Pearl Harbor　　Directed by Wayne Derrick　　S5 E3 - The Amber Room　　Directed by Laura Mulholland　　S5 E4 - Ancient Maya Resurrection　　Directed by Dina Mufti　　S5 E5 - The Alamo　　Directed by Tomasz Cebula ... (as Tom Cebula)　　S5 E6 - Narcos　　Directed by Christopher Riley