A young couple urgently seek the help of Minister David Easton before he leaves the islands. Meanwhile, David's boss, the Reverend Steve Wild, arrives from the mainland with some important news about the man he's appointed to take over as the new minister. And it's time for the big annual Scilly dog show, when Heike the vet has to decide whether to run the risk of introducing her troublesome rescue dog Jasper to the other islanders.