From the creator of the award-winning ITV series 'Prime Suspect', starring Helen Mirren, comes the fascinating back story of the iconic DCI Jane Tennison. In 1973 Jane Tennison, aged 22, leaves the Metropolitan Police Training Academy to be placed on probationary exercise in Hackney where criminality thrives. We witness her struggle to cope in a male-dominated, chauvinistic environment, learning fast to deal with shocking situations with no help or sympathy from her superiors. Then comes her involvement in her first murder case.