Frenzied speculation links the Chief to the vacancy at the top of the Met Police. Miekelson insists he does not want the job, before common courtesy demands he head to London for an interview. Elsewhere, there is a promotion for Surjit Singh, leaving Hugh McKirdy wondering how you replace an irreplaceable partner, while Bobby makes an official complaint at the police station on behalf of his dog Fridge. Annie McInnes demonstrates how human error affects throwable tech, Charlie McIntosh becomes the poster boy for a countryside campaign, and urban crimefighters Fletcher and McLaren make the TV news.