Plot Synopsis

Using groundbreaking CGI technology, all-new photography, and insights from top marine archaeologists, DRAIN THE OCEANS is a one-hour docuseries that delivers new insights into the epic history of human civilization and the deep-sea world, exposing sunken cities, shipwrecks, and amazing natural wonders of the deep. In the season opener, "Villains of the Underworld," pirates, gangsters and other villains have been swallowed up by the sea, and now cutting-edge technology reveals the secrets of the sea floor and exposes the shaky ground on which humans live. Then, the second episode, "Nazi Secrets," the hidden secrets of the Nazis are revealed when the oceans covering them are drained using CGI animation.

Season 3 of DRAIN THE OCEANS premiered on Tuesday, May 5, 2020 from 9-11pm ET/PT, as National Geographic Channel premiered back-to-back new episodes: "Drain the Oceans" (9pm): A high-tech survey reveals the dark secrets of U.S. nuclear tests at Bikini Atoll; "The Viking Seas" (10pm): After vanishing in the Baltic over 450 years ago, a formidable battleship reveals secrets.

The fourth season of DRAIN THE OCEANS premiered on Monday, August 2, 2021 from 8-11pm ET/PT, as National Geographic Channel debuted three back-to-back episodes. Season 4 ends one week later, when three more episodes debut from 8-11pm ET/PT. In the season opener, "The Wild West" (Monday, August 2, 2021 at 8pm), life in the Old West and who was left out of the story. Then, in the second episode, "The Battle for the Black Swan" (Monday, August 2, 2021 at 9pm), a billion-dollar mystery centers on a single, unknown ship. Finally, in "Arctic War" (Monday, August 2, 2021 at 10pm), the many toxic Cold War secrets hidden in the Arctic.

DRAIN THE OCEANS returned for its fifth season on Tuesday, November 29, 2022 at 10pm ET/PT on National Geographic Channel. The season opener, "The Secrets of Pompeii's Dead," features new discoveries at Pompeii and Herculaneum, which reveal the identities and final moments of those trapped during the eruption of a volcano 2000 years ago. A new episode debuts weekly.
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Season 6 of DRAIN THE OCEANS premiered on Sunday, March 5, 2023 at 10pm ET/PT on National Geographic Channel. In the season opener, "Alaska," draining Alaska's extreme north reveals the graveyard of a tragic fleet.