S26, E1: When a man falls from a high-rise building, the Lyell team are drawn into the criminal underworld of notorious mafia-group, the 'Ndrangheta'. Aided by the National Crime Agency (NCA), Nikki and the team set out to uncover the truth. As they descend deeper into the murky depths of the investigation, Nikki soon finds herself embroiled further and further in the mafia's web.