NOVA (1974)

S31E12 Descent Into the Ice

A group of "glacionauts" embarks on an adventure into the treacherous and uncharted glacier caves of Mt. Blanc in France. As they navigate through the icy labyrinth, they face numerous challenges and dangers, testing their skills and resolve. The journey promises to reveal the hidden wonders of the ice while pushing the team to their limits in this thrilling expedition.