The two series of Liverpool 1 follow DI Isobel de Pauli who has transferred from the Metropolitan police to work in Liverpool with the CID. She is partnered with Cally who has relatives in the local underground.
We go through the trials and tribulations of fitting in her new job and the regional prejudices she suffers.
The story lines are varied and involve drugs, sex, paedophilia, and murder. The gritty streets of inner city Liverpool are excellently depicted and the growth of relationships in the squad woven into the stories. The burgeoning and ambiguous relationship between de Pauli and Cally is developed through the two stories.