Interestingly enough, it’s been confirmed that season 4 will utilize a different structure. In previous seasons, each feature-length episode presented a new mystery. Season 4 will instead tell one overarching story across the whole season.
Gordon visits Island Park, ID, to help rescue the stunning Angler's Lodge. The owner, who built the lodge with his own hands, has lost his passion after a family tragedy and it has almost cost him his business.
Still picking up the pieces after the death of Denis and the cover up that followed, Val Ahern’s world is rocked once again when a stranger turns up on her doorstep. The stranger introduces himself as Finn - Denis’ estranged son, and his existence is an unwelcome surprise for the family.