Harlee Santos (Jennifer Lopez) is a charismatic single mother and resourceful detective at the heart of a tight-knit crew of Brooklyn detectives. Led by enigmatic Lieutenant Matt Wozniak (Ray Liotta, Goodfellas, Field of Dreams), the team has been known to step outside the limitations of the law in order to effectively protect their precinct and their own. But when the FBI starts an investigation into corruption on their squad, Santos and Wozniak's team starts to crack.