After Danny witnesses a drive-by shooting, he butts heads with the detective assigned to the case. A childhood friend of Jamie's is convinced that she has single-handedly solved a cold case murder. Frank struggles to trust an ex-detective when he brings forth information about a suspected crime ring.
The Reagans confront hard choices on the job when Frank deals with a police captain who's losing his grip over his precinct. Danny faces backlash from Baez and Internal Affairs over a tough call he made in the field. Jamie and Eddie are shown the ropes of field crisis management when a social worker is assigned to them for a ride-a-long. Erin weighs the consequences of a dangerous criminal's release under new bail laws. MORE -LESS
Frank must decide whether the department can accommodate a request to remain in the field from Detective Allison Mulaney, a lauded cop who is wheelchair-bound after being wounded in the line of duty. Erin is conflicted by the weight of her authority in the sentencing of a man guilty of vehicular homicide. Danny and Baez pursue a ride-share rapist. Jamie and Eddie team up to aid a fellow officer when his partner is shot on the job MORE -LESS
Danny and Jamie combine forces to convict a notorious drug lord, as Erin nervously awaits the Governor's selection for the new District Attorney. Also, Frank and his grandson, Joe Hill (Will Hochman), face a difficult decision as they navigate their new and complicated family ties.
Amidst a shifting political climate, Frank goes head to head with City Council Speaker Regina Thomas over protests against police brutality. Jamie and his nephew Joe Hill work together to locate Danny and Baez when they go missing while searching for a killer. Eddie steps up to help an abrasive woman find her father's body after it was misplaced during the outset of the pandemic. MORE -LESS