Mervin begrudgingly embraces island life and agrees to watch a local women's football game with the team. But half-time sees a bloody discovery when the star player is found dead in the locker rooms with a fatal bullet wound. The team are left perplexed when it becomes clear that the only way to access the changing rooms is via the pitch - and no-one in the crowd saw anything. So, how did the killer slip through the net? As Mervin feels the pressure from Selwyn over a murder that took place right under their noses, Naomi is at a crossroads when someone from her past turns up on the island.

Mervin reopens his mother's case and uncovers the prime suspect in her murder. But even though everything points back to this suspicious figure, they can't work out how foul play was involved. By all accounts, Dorna took a boat out in a storm of her own volition and drowned at sea. Just as the team starts making headway in the case, Sterling pulls rank and throws a spanner in the works. Can a world-weary Selwyn help them before it's too late?

And old wounds are reopened as Mervin is forced to confront his past. But will he finally get the answers he's looking for?