Deep sea exploration : the last frontiers on Earth

This documentary explores the hidden ecosystems of the deep ocean and their vital role in maintaining Earth's climate and biological balance. It examines a world of unusual creatures and microscopic processes that operate in total darkness. The film highlights the tension between the scientific importance of these depths and the growing threats posed by the pursuit of deep-sea mineral resources. The narrative includes the Bicose 3 mission by the French institute Ifremer, during which researchers used a submarine to reach depths of 3500 meters over a 45-day expedition aboard the vessel Pourquoi Pas ?.

Produced in France by SVT, ARTE, and Grand Angle Productions, the film was directed by Stéphane Huonnic and Alwin Courcy. It features Céline Melloul as the narrator. This family-oriented TV movie has a runtime of 53 minutes and was released on June 8, 2026.