Chief Commissioner Miekelson strives to stay independent, Karen takes part in a revolutionary experiment, and Archie Pepper operates smart tech to snare Scotland's dumbest crooks.

Singh and McKirdy escort a very special delivery as they do their part to save a species from extinction, and McIntosh and Mackay find themselves in a seemingly endless search.

Chief Commissioner Cameron Miekelson lambasts allegations of bias around policing at the Edinburgh Derby, and later reassesses the Scottish Police Force's new training policy when his virtual reality programme gets all too real.

Dream cop team PC Hugh McKirdy and PC Surjit Singh come across football pundit Chick Young stranded by the roadside. When Chick gets involved in a radio debate show about Scotland's greatest football player, PC Hugh and PC Surjit's behaviour is far from sporting.

Chief Commissioner Cameron Miekelson's latest rehabilitation venture sees him join forces with Sir Tom Hunter; sparks fly when PC Jack McLaren and his partner PC Sarah Fletcher offer a helping hand at the scene of a fire, and Acting Sergeant Ken Beattie gets a shock as he solves a murderous cold case.

Traffic Officers McKirdy and Singh discover that the journey to true love can be a rocky road. In the countryside, the rural coppers call for backup in the shape of Mother Nature.

Chief Miekelson is the victim of a tabloid sting - is he out of a job? Officer Karen's jurisdiction is stretched to its limits thanks to Bobby's involvement in international crime.