You can now watch the entire The Underwater Realm movie online in high-definition quality, complete with English subtitles for a better viewing experience. Best of all, there’s no need to download anything—simply stream it directly from your device anytime, anywhere.
Thousands of years ago, the world's most advanced civilisation sank beneath the waves, its people forever doomed to wander the ocean floor. is the story of the five times those on the surface have caught a glimpse below: freediving off the coast of modern Hawaii, a downed pilot at the height of World War II, amidst the smoke and fire of the Spanish Armada, a suicidal girl in medieval England, and finally, at the height of Roman Power in 149 BC.