Officer Denny Rakestraw, "Negro Officers" Lucius Boggs and Tommy Smith, and Sergeant McInnis have their hands full in an overcrowded and rapidly changing Atlanta. It's 1950 and color lines are shifting and racial tensions are simmering. Black families—including Smith's sister and brother-in-law—are moving into Rake's formerly all-white neighborhood, leading some residents to raise money to buy them out, while others advocate a more violent solution. Rake's brother-in-law, Dale, a proud Klansman, launches a scheme to rally his fellow Kluxers to save their neighborhood. When those efforts spiral out of control and leave a man dead, Rake is forced to choose between loyalty to family or the law.
He isn't the only one with family troubles. Boggs has outraged his preacher father by courting a domestic, and now her ex-boyfriend has been released from prison. As Boggs, Smith, and their all-black precinct contend with violent drug dealers fighting for turf in new territory, their personal dramas draw them closer to the fires that threaten to consume Atlanta once again.