On a boat, on their way to the Sisters Islands to scatter their father ashes, Nolan reveals to Magnus the legend of Minah and Linah, the two little sisters that gave name to the islands. This is the last chance for the father to reunite their emotionally distant sons. The legend tells how the brave Minah swam in the ocean after a fishermen boat that kidnapped her little sister and how they gave everything they had to stay together. The story brings unresolved family issues. Magnus doesn't wait for Nolan and dives alone, leaving his brother behind. Under a storm, submerged in the waters the brothers are forced to resolve their conflict. Magnus makes a discovery bringing light to the buried secret enclosed in the depth of the islands.