After Law & Order, NCIS, and Chicago TV universes, veteran producer Dick Wolf makes his first streaming show with On Call. The new series is situated in Long Beach, California, where a seasoned police officer trains a newbie after one of her former trainees is murdered on the job. Starring Troian Bellisario and Brandon Larracuente in the leads, Amazon Prime Video’s On Call flies right out of the gate but circles around the same few issues over and over again. Troian Bellisario is by-the-books officer Traci Harmon, who never fired a weapon in 12 years. Meanwhile, Alex Diaz is an overeager rookie who wants to do it again. Following the death of officer Delgado (Monica Raymund) for a routine traffic stop, the Long Beach police force is on the hunt for a cop killer. However, it is Harmon who takes the search to heart while maintaining the on-the-job lessons for the new guy on the beat.