Set in 1970s Hackney, it will see 22 years old Jane Tennison start as a WPC on the beat before being thrown into a brutal murder enquiry. Viewers will also meet her family and gain an insight into her personal life before her time as a detective in Prime Suspect.
The six-part prequel series will reveal how Tennison became such a complex and formidable character in the Metropolitan Police.
When: Thursdays on ITV
Actors: Stefanie Martini, Sam Reid and Blake Harrinson