Victor, Gus and the rest of the group head for the Water Realm, with nothing more than Zeph's vision to guide them. On the high seas they are met by an old enemy and must fight their way to freedom before the ship is lost.
As Gus spends more time with Desiree the pain continues to grow within him over the loss of his daughter. It isn't until both are trapped in a life or death situation that the truth comes to the surface and only by working together can they hope to save themselves.
With the fate of not only the whole Water Realm in their hands, but also their home town of Daunt, they race to try and stop the events that have been set in motion.