When Murphy and Ada team up to help solve a murder, they discover that the killer's next target is Gideon. After learning his safety's at risk during his company's huge technology convention, they utilize a high-tech scanning system to try and track down the killer.
After witnessing his best friend's murder first-hand, genius tech billionaire Gideon Reeves, decides to do something about it, putting up millions of dollars of his own money to take over the troubled 13th Precinct. When he reboots it as a private police force it challenges the whole district - including the ambitious Officer Amelia Murphy - to rethink the way to fight crime: better, faster and smarter than anything seen before.
Inspired by true events, APB is about the Chicago Police Department spiraling out of control amid sky-high crime, officer-involved shootings, cover-ups and corruption.