Abby spots an ad, which seems to promise the way of life she dreams of, but there's a problem: it specifies a married couple and Abby is a single parent. Abby persuades Kenny, her childhood friend and neighbour and a perpetually aspiring musician, to pose as her husband, at least for the interview on Ronansay. Kenny agrees reluctantly: the role of Abby's husband and father to her children is too close to his most cherished fantasy for comfort. Abby, Kenny and the children set off on the long drive north. After much infighting, the islanders draw up a shortlist and interview several candidates - all unsuitable. Then they meet the Peterson family who seem so ideal that when Abby and her "family" arrive on the island, the islanders have already offered them the post. But as a bitterly disappointed Abby, Kenny and the children wait for the return ferry, the Petersons reveal that they are the leaders of a doomsday cult, looking for somewhere to bring their followers. The islanders beg the Wallaces to stay, and Alfie and Charlotte take their places in the school just in time to stop it being closed.