A religious group declares that Hamish is the devil, leading Hamish to investigate. What he discovers is more complex than he imagined. On the personal front, Alex and Hamish begin cohabitating.
Barney Meldrum seeks to provide a new,money-making visitor attraction for the village - a whale-watching trip, using fiberglass whales, but the whole enterprise ends in disaster and a distraught Barney suspects his wife Agnes of having a fling with handsome newcomer Gavin Robb. When a man disappears and Lachie Jr. starts dredging up cattle cake from the sea, Hamish puts on his diving apparatus to investigate in the deep.
Isobel adopts a new look and focus; breaking a big news story and finding a new boyfriend. Hamish is immediately suspicious and investigates as the village of Lochdubh has lottery fever.
Hamish is ordered by authorities to shut down a popular pirate radio station, causing a conflict of interests for the officer. On the personal front, Hamish and Isobel share a moment.
Hamish is in deep mourning during a leave of absence on a nearby island where he must come to the aid of an elderly woman in a world of trouble; while back in Lochdubh a temporary replacement Constable rubs the residents the wrong way.
Lachie Junior lands a new job with the undertaker, and when a corpse disappears, Hamish tries to convince his fellow Lochdubh residents that it was taken by aliens.
