Isi, Selena, and Lily are still alive in this terrible war. The sisters have not seen each other in six years, courtesy to the scientists that keep them captive. However, the tides are changing and the tension is rising. The sisters have known nothing but fear, pain, and death. Is that about to change? Will they finally be able to swim in the open waters, free of all boundaries? Or will they continue to be tortured because they were born with fins instead of toes?