Five years ago, fourteen-year-old Max Wheeler disappeared from Priest's Island, an isolated but bleakly beautiful place on the edge of the Atlantic Ocean.
In the closeknit local community, there are no secrets, except what happened to Max. None of the police or private investigations since have shed any light on what happened the night he went missing, presumed dead.
But there is one man who is yet to take on the case: The Sea Detective.
Cal McGill is an oceanographer and unique investigator who uses his knowledge of tides, winds and currents to solve mysteries no-one else can.
However, Cal is an unwelcome stranger who must navigate the tensions between Max's inconsolable father, the broken family he has neglected, and the embittered locals, resentful after years of suspicion.
As Cal arrives, a violent storm approaches, threatening to completely cut off the island, with a possible murderer at large...