Luminous beings, creatures with their own internal light, captivate and amaze us. Anyone who has witnessed the enchanting glow of a firefly or a glow-worm cannot help but be spellbound. At night, the sea sparkles with millions of luminous plankton, revealing the graceful forms of dolphins in a truly magical light show.For centuries, we marveled at the beauty and mystery of animals producing living light. However, thanks to three crucial technological breakthroughs, we can now begin to unveil the astonishing truth behind these living lights. Firstly, the advancement of color cameras has been remarkable, with sensitivity now over 4,000 times higher than a decade ago. These highly sensitive cameras are uncovering startling discoveries that were previously invisible to us.Secondly, scientists have ventured into the unknown world of the boundless deep ocean with the help of new generation submersibles and robots. This has allowed them to explore and study the secrets of bioluminescence in the depths of the ocean, an area that was once inaccessible to us.Lastly, Ammonite Films has developed a series of unique cameras capable of capturing the faintest ephemeral glow of luminous life. These innovative cameras, combined with the advancements in color camera technology and deep-sea exploration, have enabled us to witness creatures and behaviors that were previously unseen.In this film, guided by the esteemed Sir David Attenborough, we embark on a journey into this uncharted world. Bioluminescence is not limited to the depths of the ocean; it is present everywhere, from the soil to the land and throughout the vast oceans. Join Sir David Attenborough and a team of the world's leading scientists and deep-sea explorers as they strive to unravel the secrets of living lights.