The drama "APB" is inspired by an article "Who Runs the Streets of New Orleans". The background is in a bankrupt and dying city. A mysterious, technology-based billionaire, because his friend was murdered, funded a police station in trouble to set up a private police force to solve various chaotic situations in the city. David Slack and Len Wiseman are also executive producers. Justin Kirk will play the billionaire and genius Gideon Reeves in the play. While carrying a childish curiosity, he also has an irresistible charm. After his friend was murdered, he decided to greatly change the original police system. In the play, he developed a new application for the police station-APB, and provided various high-tech gadgets to the police. Natalie Martinez plays Detective Theresa Murphy, who loves to mock, is confident, comes from a police family, and is never afraid to question authority. Therefore, she has been disliked by her superiors in various police stations and was abandoned to the chaotic 13th police station. Caitlin Stasey plays Ada Hamilton in Reign. She is a striking, smart and cynical leader of the police department who was brought into the technology department of Gideon Reeves' police department. She has an anti-traditional and aggressive personal style. Taylor Handley, the star of Vegas, plays police officer Nicholas Brandt, a former Marine who has been on the battlefield. Before facing the city streets, he still can't get rid of the feeling of being on the battlefield. Ernie Hudson plays Superintendent Ned Conrad, a gruff and rough veteran of the 13th District Police Department. He doesn't buy into the new "master" of the police department, Gideon Reed; Tamberla Perry plays police officer Tasha Goss, and Nestor Serrano plays Mayor Michael Salgado. Eric Winter plays Superintendent Tom Murphy, a fierce policeman, but he actually has a big heart under the tough appearance, and he is a good family man. He is the husband of homicide detective Theresa Murphy and has two children.