Six men are found dead on an abandoned farm in central New South Wales. Their identities, nationalities, and reason for being there? Unknown. The coroner finds that they drowned, despite the entire region having been in drought for years. The possibility of people smuggling leads to AFP star Isabella Jones taking on the investigation, a move met locally with suspicion and resentment. Isabella has little to go on until she is given a handwritten note with just five words: "Embers should never have died".
Clues slowly fall into place— a lock that works only from outside… an old dresser recently moved… But it is the connection between the men and a young woman who died three years earlier that sets the investigation alight. Isabella soon finds herself facing off against white supremacists, corrupt cops, and, finally, the one person who not only knows how all the pieces fit together but is prepared to kill Isabella to keep that information secret.