The story highlights the survival of different individuals under extreme circumstances underwater. One of them is Harrison Okene, who managed to survive for nearly three days in an air bubble after his boat capsized off the Nigerian coast in 2013. Similarly, Roger Mallinson and Roger Chapman were rescued with 12 minutes of oxygen left after their mini-submarine sunk to 1,575ft below the surface off the coast of Cork in Ireland in 1973.

Rolando Omongos from the Philippines survived drifting at sea for almost two months on a tiny boat. Other notable survivors mentioned in the story include Jose Salvador Alvarenga, Brett Archibald, and the 33 men from the US submarine Squalus who were saved after their vessel sank off the east coast of the United States in 1939.