Kate spearheads an investigation of two officers who shoot and kill an unarmed man; Jinny's drinking problem causes her to miss a meeting with a star witness.

While at a gun show peter & Magda find out that a dealer sells weapons.

A teen who set his school on fire is missing.

Jinny is the target of a seemingly random shooting. The efforts of her brothers and boyfriend to make her feel safe do little to alleviate her feelings of vulnerability. CD and Angela investigate the murder of a pizza deliveryman. Magda struggles to resolve her conflicts with Peter.

Kate deals with heated community conflict surrounding an upcoming murder trial, as the entire squad pitches in to interview reluctant witnesses. The gun used to kill CD's former partner is discovered, dredging up painful memories. Jinny's boyfriend wants to take their relationship to a new level. Magda voices concerns about Jinny's drinking. Angela gives her husband a big surprise.

Magda goes undercover as a prison inmate during a murder investigation. C.D. and Angela get more than they bargain for when they take a documentary filmmaker on a ride-along to serve a subpoena. When Jinny meets Theodore's family and ex-girlfriend, her drinking problem resurfaces and threatens to destroy the romantic relationship.

C.D. and Angela investigate an attempted murder and discover that the victim is a former teen criminal who achieved celebrity because of her crimes. Jinny makes a surprising decision about going on a weekend trip with Teddy but gets a surprise of her own. When she is offered a deal that could end her investigation, Angela must make a decision that could end her association with The Division and faces pressure from her husband.

Jinny finds love after rehab.

Jinny makes a split-second decision that could cost her her job. Ben blames Magda for Gabe's moving out and his rebellious behavoir escalades until the unthinkable happens. C.D. and Nate investigate the death of a high school student whose parents saw a very different side of him than his peers.

Kate orders an ""all nighter"" to find a Serial Killer that Strikes on a full moon.