Our own Peter McDonald and Aiden Gillen take starring roles in this brand new BBC drama series. Mayday is a gripping new mystery drama that will be shown over five night. It's May Day (funnily enough), and the members of a small Sussex community are going about their business as they wait for the parade to begin. All is going swimmingly until the May Queen - local teenager Hattie Sutton - fails to show up. Cue mayhem and madness as several locals suspect their loved ones are responsible for the young girl's disappearance.