After moving away from her childhood home on the remote island of Marado, South Korea, Jaeyoun finds herself plunged into a deep state of depression. Fearing she might do herself harm, her aunt — a lifelong free diver and fisherwoman known as a “Haenyeo” — invites Jaeyoun to return to her island roots. Hailing from 6th generations of Haenyeo before her, Jaeyoun travels back to visit her family and the all-female fishing community on Marado.