Nick Knowles and Louise Minchin present dramatic events from the day-to-day work of the emergency services, going behind the scenes at one of Britain's biggest police control centres. The RNLI is called out to rescue Poppy, a springer spaniel who has chased a bird and fallen 300 feet from the cliff top. A critical care doctor goes to the aid of a man who's refusing to believe he's badly hurt despite fracturing his skull.