Luminousbeings,creatureswiththeirowninternallight,enchantandastonishus.Anyonewhohasseenafireflyoraglow-wormcannothel butfallundertheirs ell.Theseaatnights arklesasmillionsofluminous lanktonrevealthesha esofdol hinsinatrulymagicallightshow.Butwhydoanimals roducelivinglight?Forcenturieswecouldonlymarvelatthebeautyandthemystery,butnowforthefirsttimewecanbegintorevealtheamazingtruthaboutlivinglights.Ithastakenthreecrucialtechnologicalbreakthroughs.Firstly,colourcamerashaveim roveddramatically;theyarenowover4,000timesmoresensitivethanadecadeago.Thecamerasaresosensitivetheyarerevealingstartlingdiscoveriesthatuntilnowwecouldnotsee.Secondly,scientistshaveenteredtheunknownworldoftheboundlessdee o enoceanwiththehel ofanewgenerationofsubmersiblesandrobots.Thirdly,AmmoniteFilmshaveinventedandbuiltaseriesofuniquecamerasthatcanca turethefainteste hemeralglowofluminouslife.Bycombiningthesethreeinnovations,thisfilmshowscreaturesandbehavioursneverseenbefore.SirDavidAttenboroughisourguideasweventureintoanewhithertounseenworld.Bioluminescenceiseverywhere:inthesoil,onthelandandthroughouttheoceans.JoinSirDavidAttenboroughandateamoftheworld’sleadingscientistsanddee seaex lorersonaquesttorevealthesecretsoflivinglights