Sarah and Holder's investigation comes to a close. Meanwhile, Richmond sets out on a bold new course; and a surprise source helps bring closure to the Larsens.

Sarah copes with the consequences of past mistakes; Holder wrestles personal demons; Seward is truthful.

Linden and Holder are confronted with the shocking truth behind the Stansbury murders.

The hunt for a pornographer leads to a shocking revelation; Holder looks for a scapegoat; Twitch and Lyric find their dream home.

The police connect Rosie to a suspicious website. Stan faces his demons while Mitch learns secrets she never knew about Rosie.

Sarah and Holder close in on the murderer. Meanwhile, the Richmond campaign preps for the election; and the Larsens seek to get their lives back in order.

In the Season 3 finale, Sarah risks her life when someone dear to her goes missing; and Holder's past is used against him.

Sarah seeks peace in the case's aftermath; the detectives pick up an unnerving new assignment; Lyric is tempted by her old life; Danette says good-bye.

Linden and Holder focus their investigation on a new suspect, and a tip from an informant leads Reddick to a shocking discovery.

The identification of the mysterious Orpheus provides a vital connection to the case. Mitch and Stan reflect on the past while contemplating their family's future.

A return to the casino winds up sending Sarah and Holder on the run, while Stan and Richmond face life-altering decisions.

Sarah goes missing; Bullet makes a choice to save Lyric; a dark secret is learned.

New information about the family murders surfaces. Meanwhile, Holder's loyalty is put to the test.

Richmond lends support to the investigation; Sarah tries to track down Rosie's key; and Stan deals with his troubled son.

Sarah makes a grim discovery in regards to her past; Holder catches an unsettling case; Seward shows his true colors.

While covering up Lt. Skinner's sudden disappearance, Linden and Holder are assigned a new case: the brutal murder of an entire family with ties to a military academy.

Questioning a neighbor leads to a revelation about one of the murder victims.

Reddick digs deeper as Linden and Holder struggle to keep their investigation from going cold.

On her last day of work, homicide detective Sarah Linden is drawn into a new case about the disappearance of a teenage girl, Rosie Larsen. Mitch and Stan Larsen frantically try to track down their daughter when they learn she did not show up at school. City Councilman Darren Richmond prepares for an important forum with the Mayor as the election nears.

The police are thwarted in their efforts to arrest Bennet. Richmond thinks long and hard about removing himself from the Mayor's race. Mitch and Stan have had it with the police.

Richmond rises in the polls; a surprising individual turns himself in.

In the aftermath of the shooting at City Hall and Linden's discovery that the photo leading to Councilman Darren Richmond's arrest was forged, Sarah returns to Seattle to investigate a possible cover up and wonders if she can trust her partner.

The investigation refocuses on the casino; Stan has an uneasy face-to-face with Richmond; tension grips the Larsen house.

Holder disappears and a desperate Sarah goes looking for him; Stan decides to take matters into his own hands; and Richmond returns to City Hall.

Sarah has her own reasons to join the task force; Holder finds a new street informant; Seward strokes an old rivalry.