While handling a hostage situation, CD meets her new partner, Angela. While trying to figure out who murdered a famous psychiatrist, both also need to take shooting tests. Magda and Peter, acting on a tip, discover illegal Asian immigrants who are being forced to work in exchange for their being brought to America. Kate is dismayed when Jinny makes a mistake while trying to bust deadbeat dads and even more dismayed when her 18-year-old daughter, Amanda, announces her engagement to her slacker boyfriend.

When Magda and Peter bust a meth lab, Magda gets an unpleasant surprise. Jinny goes undercover to bring down the owner of a strip club who forces dancers to have sex with celebrity customers. CD and Angela investigate the death of an homeless man and try to figure out how he got to the streets . Kate is having a relationship with a younger man, the assistant district attorney.

Jinny Looks into the case of woman who was raped.

Magda and Jinny's investigation into the death of a college student exposes the rampant homophobia in the victim's fraternity. The case touches a nerve with Jinny, whose own brother's coming-out unleashes a fury of prejudice in her family. CD and Angela look into a case of alleged elder abuse and a shocking development causes them to question their earlier decisions. Angela learns of CD's marital woes. Kate and her younger boyfriend fight about the state of their relationship, which she wishes to keep secret.

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.

Kate suspends Jinny after she shows up to make an arrest drunk and disheveled. Magda, secretly organizes an intervention in the hopes that Jinny will confront her addiction and go to rehab.

Jenny is back from rehab.

Help is needed to find a missing girl.

A 12 year old girl goes to school with drugs.

Jinny & Magda look into the involvement of a judge in a woman's murder. Kate meets men through dating service at a restaurant where a handsome man is working.

Jinny learns of and meets her half sister for the first time. Magda and Gabe may have to donate bone marrow to save Ben's life. Ben wonders if he will die of Leukemia. Jinny is mad at her dad because of his other daughter. Kate's boss finds his name on a list.

Jinny's Dad is hospitalized which brings the family together. Magda and Gabe are desperate to find a bone marrow donor for Ben as he is not responding to the treatments. Kate gets an offer from Louis that is too hard to pass up, and C.D. and Nate close in on the white supremacist killer terrorizing San Francisco.

A mom shoots a child molster and kate is almost shot. sparks begin To fly between Jack and Jinny.

To begin the episode real woman what they feel like after being raped. Dr. Anne Polton tells Kate that one of her students was raped and asks that police ask for the help of deaf people because they notice more details that hearing people may miss.

Dr. Polton tells Kate she was raped which helps Kate understand her better. CD questions a man who warns that someone may be raped again.

CD & Nate look into the case of a woman who may have left her baby daughter behind. Will Jinny leave AA for good?

Jinny learns her brother a cop died. Also CD & Nate look into the case of a psychiatrist who may have raped a patient with MPD (Multiple Personality Disorder) The psychiatrist says ""Liz"" is highly charged but says he didn't rape Christine.

CD & Nate ask about Jinny who misses her brother. Jinny tells Jack her brother's locker will be cleaned out. Jack thinks Jinny is on drugs. Magda wonders if the relationship with Jonah should continue. Magda realizes her affair with Jonah is going to far.

The funeral of John Exstead Jr. leaves Jinny in a blanket of memories.

Jinny learns that Jack will move, the team watches a crime about to happen. Kate begins her recovery. Magda tells Jonah she might be having a baby, Jonah isn't ready for kids.

Kate comes home from the hospital CD & Nate try to catch prisoners who escape custody hurting Nate. Jinnny & Magda talk about if she will have a baby while waiting for Gina Bracken. None of the team likes the new captain because he wants everything done by the book.

Gabe is disappointed that she isn't pregnant. Kate asks to be updated on things, she can't get used to having a stroke.

Jinny leans that the gun that was used to kill a Marshal also killed her brother John.

Jinny vows to avenge her brother's murder. Kate pays a visit to The Division and has mixed feelings about a new boss taking over. CD tells Nate her fears of almost losing him after he nearly got shot. CD & Nate go to a bar to meet a suspect but end up in a shootout. Raina thinks about dating Johnny. Magda ends her affair with Jonah. Jinny into Ray the man who killed her brother. Kate thinks about leaving her job until she finds out that the new boss is planning to fire Jinny. In a season-ending cliffhanger, one of The Division is shot.

In this episode Nate gets Raina as a partner because CD dumped him. Jinny tells Magda that she got divorce papers from Jack. Raina tries to find out why CD left. Kate considers hiring Stacy Newland to help Kate.

Amy whose husband hit her is killed by ""Buzz"" their pit bull was going to be trained as a guard dog. Jinny meets Hank Riley a sketch artist but doesn't seem ready for love.

The detectives look into a district attorney's past to learn why he was brutally murdered. They soon learn he had HIV and may have exposed virtually hundreds of people. Kate is concerned that Katie Ann isn't walking soon enough. Stacy has to serve 39 subpoenas and encounters a dangerous situation when delivering one. Jinny returns to work after becoming a new mom and learns that Kate isn't immune to being a nervous grandmother just as Jenny feels nervous about being a first time mother and having to let everybody touch her baby.

The inspectors look into the murder of a pregnant woman and wonder if her husband could be connected in the murder. The inspectors learn that he was rock climbing alone at the time of the murder. Later, new suspects keep popping up and in a shocking ending that will leave you speechless, the murderer is revealed.

The inspectors try to figure out why a high school student was shot. The principal of her school doesn't believe that it is a serious problem. Later, a car is set on fire in the school parking lot. Jinny talks with Hank about having their wedding held at her father's home and trys to convince him to let Casey and his partner get married there as well. The detectives discover a cryptic website with horrific threats that will keep you in suspense until part two of this two parter.

Kate, Raina, Nate, Magda, and Jinny must find a way to get Stacy, the principal, and 10 students out of the school safe and sound when they're held hostage by armed terrorists. The team meanwhile must figure out who these people are and why they're doing this. Also, Jinny and Hank get married.