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 house party in Ruskin Gardens ends in murder, Morales and Killian turn to Quinlan for insight into her neighbors to help crack the case; Haywood takes on an unexpected new role; Suarez tries to help his brother with a challenging situation.

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.

When a string of luxury boutique robberies is tied to a crew out of East New York, the team discovers a connection to Haywood that could prove crucial to solving the case.