This seems to be a different title for the episode, "The Big Water." Reaching the mysterious wide water (the ocean) the Korg family must contend with the unknown dangers of the coastline, and particularly of the inexplicable high tides. They have never before seen anything like it. A tide comes in and takes their supply of meat out to sea, and later, Mara's foot become trapped between some rocks. Mara might soon drown if her foot is not freed from the rocks before the tide gets over her head. They try but cannot move it by brute force. But Korg has seen a large rock move before, sliding on logs or moving them using logs like levers, and they fight against time and try to save his mate. They finally manage to do so just in time. Then, Tane discovers their supply of meat has washed back to shore, so having nothing else to eat, they cook it and discover it is the best tasting meat they have ever had. The foul salt water was too bitter to drink, but apparently, after a day or so in the water, the flavor the wide water imparted to the meat was wonderful.
—Jilerb