Setting the third brother free should have broken the curse for good, but the darkness still threatens everything. The curse cannot be truly broken until the fourth brother is found and he too finds true love.

David is bitter, having lost his entire family after his mother passed. Now, he clings to his love of the ocean. When that love brings him face to face with a mystical selkie man, will he accept his destiny or turn from it and the selkie who desperately needs him?

Muir is tasked with finding the male witch who can help save the last of the Selkie people. When he is attacked by the enemies of the Selkie and loses the seer stone everything feels lost, at least until he finds David, the sexy witch man who may help him rewrite all of the selkies' destiny.

As David and Muir work through their emotional and physical attractions, the lives of the Selkie people hang precariously in the balance. Will these men be able to bridge the tide that flows against them, or will hope for the Selkie's salvation be lost forever?