With ultra-HD footage, the quiet majesty of the ocean’s floor takes centre-stage here.

Marine biologists discover extraordinary, unnamed sea creatures at the deepest point in the Pacific Ocean, up to 6,000 meters deep at some points but the imminent mining of the ocean’s ‘midnight zone’ to extract the very elements needed for ‘green energy’ technology also threatens these remarkable organisms altering their habitat through the use of heavy machinery, unfamiliar light and noise.

This remarkable and balanced documentary contests the pros and cons of disrupting one environment to preserve another.