Regina Haywood is promoted to be boss of the 74th precinct in East New York, where she must get her crew on board -- but some are skeptical of her promotion.

During an investigation into a fatal shooting, the team crosses paths with Demonté Green, a smooth-talking businessman who may have been the intended target. Also, Deputy Inspector Haywood tries to help a troubled teen, and Detective Killian finds himself at odds with his girlfriend, Corinne, after she hires an ex-con to work at their new bar.

When a child goes missing, Haywood encourages Yenko to use his connection to a witness in the race to locate the young boy. Also, Chief Suarez lands in hot water after an arrest goes viral, and Sandeford unexpectedly crosses paths with an ex-girlfriend while on the job.

When marijuana dispensaries are robbed, Killian discovers a connection that could derail his personal life; Suarez has a fateful meeting with Allison Cha, an influential political policy adviser; Bentley returns to work after his shooting.

When the 7-4 investigates a fatal fire at a salon, Killian and Morales turn to a medical examiner with ties to Regina's past and fire marshal Nicky Greenville for insight; Haywood announces a new policy; Quinlan worries about Bentley's nightmares.

When a body is found at the construction site of a high-end housing development, the team races to find the killer amidst a contentious gentrification battle in the neighborhood; Quinlan's mother pays an unexpected visit.

After an assistant district attorney is found dead following a court appearance, Haywood and Suarez face enormous pressure to solve the case; Killian turns to a questionable source for help with a personal problem.

The team faces unexpected challenges while investigating the murder of a homeless man; Haywood and Dryden hit a speed bump in their relationship; Quinlan struggles with a decision at Ruskin Gardens.

Haywood’s leadership is called into question after a tragic shooting close to home, and her relationship with Suarez is put to the test.