After a catastrophic volcanic explosion, the land is unlivable causing most of humanity to flee to the oceans for survival. Those lucky enough to find a ship survive and adapt to sea life. The only thing I can think of to compare this to is Waterworld. The story is very engaging and the characters are relatable. Lots of action and a little romance throughout the book. Can’t wait to hear the rest of the series. Ray Greenly does an excellent job with the narration!