After having therapy to save their marriage in the last series, series eight sees Martin and Louisa face the challenge of living happily together with their baby James Henry. Doc's formidable Aunt Ruth is beginning to doubt the wisdom of going into business with Bert Large and his son Al. Bert is desperate to make his home distilled whisky a success, but there’s a shortage of customers willing to buy and guests are not exactly flocking to Al’s bed and breakfast. Wedding bells are ringing for unlucky in love PC Joe Penhale, but will the course of true love run smoothly at last for Portwenn’s police officer?
