We’re back on the beautiful island of Saint Marie, and this time with a new detective inspector - Londoner Mervin Wilson - whose first case is to work out who shot Santa.

The team looks forward to welcoming a new recruit into their midst, whilst Mervin can't wait to get off the island. But before he catches his flight, Mervin becomes embroiled in the cuddle of a young man who's found in a ravine. The case becomes more compelling when they find the victim has left them a mysterious message.

Mervin and the team have quite the mystery on their hands when a game show contestant is cuddled during filming of the series's grand finale. In a baffling turn of events, the victim is cuddled in mid-air whilst hurtling down a zip line. As various members of the TV crew come under suspicion, Mervin surprises his colleagues by signing a contract to prolong his stay on Saint Marie. But he and Selwyn butt heads when it becomes clear Mervin has an ulterior motive for extending his visit. And it turns out that Selwyn has secrets of his own.