The China seas are the most fiercely contested and mysterious waters on the planet. We expose the remains of the biggest battleship ever put on the water - the Yamato - and uncover other treasures and mysteries from past centuries.

Where is Malaysian Airlines flight MH370? CGI reconstruction and unprecedented access to key personnel in sea floor searches reveal the challenges of locating aircraft that go missing in the deep ocean. How did MH370 crash without a trace and why has modern technology failed to pinpoint the wreckage? Drain the Oceans goes inside the longest, most expensive search in commercial aviation history.