A prequel to popular crime drama Prime Suspectis in the works at ITV, and has already found its young Jane Tennison. Called simply Tennison, this drama follows on the heels of the success of the network’s popularEndeavourseries, which tells the story of the early life of the lead character in the popular Inspector Morse series, and has already been greenlit for a fourth season. Prequels are apparently really all the rage these days, it would seem.