In The Last Women of the Sea, an extraordinary group of warrior grandmothers bravely battle against the great threats of the ocean. Often referred to as true mermaids on South Korea’s Jeju Island, haenyeo are known for centuries of diving to the bottom of the ocean without oxygen to gather seafood for a living. Today, with most haenyeo in their 60s, 70s and 80s, their traditions and way of life are in imminent danger. But these fierce, funny, hard-working women refuse to give an inch, helping the younger generation’s fight to revive the lifestyle of their ancestors through social media. Exploring what drives Haenyeo young and old, this moving documentary focuses on their close friendship, expert independence and infectious sense of empowerment, turning into an uplifting story of women taking on global powers to protect their beloved ocean and inspire a new generation.