Mike joins forces with Scotland Yard when a gang of thieves turn up in Aidensfield, apparently plotting to steal a valuable horse from local trainer Kieron Doyle. When Tricia becomes linked with Kieron, the heroic copper doggedly pursues his quarry to the detriment of his relationship with the village doctor, leading to a tragic outcome with repercussions for everyone in Aidensfield. Meanwhile, Vernon is delighted when his long-lost sister Georgina arrives in Aidensfield. The female Scripps immediately sets hearts racing, especially with Lord Ashfordly. Vernon's attempt to take advantage of his sister's expensive lifestyle lands him in trouble when he discovers she hasn't been entirely honest regarding her recent divorce.