Episode 1 | Impact

The officers grapple with the aftermath of a plotted attack on the city of Los Angeles, leaving Bradford fighting for his life.

Episode 2 | The Night General

Nolan teams up with new night detective Nick Armstrong for a murder investigation case that results in an unexpected reunion with a former love interest.

Episode 3 | The Bet

Officer Nolan navigates his relationship with Jessica and a developing rapport with Grace while working a high-stakes criminal case involving an undercover homeland security agent; Officer Chen meddles with Officer Bradford's love...

Episode 4 | Warriors and Guardians

Officer Nolan's first day with his new training officer gets off to a rocky start. Officer Bradford struggles to find a birthday gift for a new girlfriend. Officer Lopez has a case that triggers difficult memories.

Episode 5 | Tough Love

The rookies are asked to develop their first confidential informants; Officer Chen's mother complicates her home life when she comes to stay with her.

Episode 6 | Fallout

An emergency alert of an impending missile attack sends Los Angeles into chaos and uncertainty, while the officers each try to keep the peace and deal with their own disasters.

Episode 7 | Safety

John and Jessica's relationship gets a lot more complicated after she delivers some surprising news; Officer Bradford and Officer West are assigned a community policing project helping out the Watts Rams as volunteer coaches.

Episode 8 | Clean Cut

Nolan spends his birthday guarding a crime scene in a law office. Bradford and West receive special commendation. Harper requests an early annual review.

Episode 9 | Breaking Point

Officer Nolan's trust is tested. Meanwhile, Officer Harper has finally earned an overnight visit with her daughter that is put into jeopardy when her past undercover life resurfaces again.

Episode 10 | The Dark Side

Officer Nolan and team are charged with escorting a notorious female serial killer. Meanwhile, Officer Chen meets a seemingly perfect man who sparks her interest, and Officer Lopez worries about Wesley as his PTSD continues to inc...

Episode 11 | Day of Death

Officer Nolan and the entire team are in a desperate search to rescue Officer Chen after her abduction and must attempt to get Rosalind to help them in their search.

Episode 12 | Now and Then

Nolan takes his son's fiancée, Abigail, on a ride-along after she shows interest in becoming a police officer. Meanwhile, Jackson's relationship is becoming complicated at work.

Episode 13 | Follow-Up Day

Nolan is given some life-changing news and invites Grace over for a homecooked meal in his newly remodeled kitchen. Meanwhile, each unit is tasked with following up on dormant cases in the hopes they can uncover new leads.

Episode 14 | Casualties

Officers Nolan and Harper investigate a murder which may have national security implications, while Officer Bradford must confront his past when he crosses paths with a homeless veteran.

Episode 15 | Hand-Off

Officer Nolan is having a particularly bad day after learning his identity has been stolen. Meanwhile, Sgt. Grey must confront his past and testify at the parole hearing of the man who murdered his partner.

Episode 16 | The Overnight

Officers Chen and Bradford respond to a call at the Los Angeles auditions of "American Idol" and Officer Chen ends up facing Ryan Seacrest and the judges; Chen befriends a reporter whose motives are not clear

Episode 17 | Control

Officer Nolan's relationship with his first confidential informant is tested when he discovers her back on the street dealing drugs.

Episode 18 | Under the Gun

Officers Nolan and Harper are tasked with escorting four juvenile offenders to a Scared Straight program at a correctional facility that quickly becomes a riotous situation.

Episode 19 | The Q Word

Their rookie year is coming to an end and officers Nolan, Chen and West are about to be squeezed harder than ever before as their training officers evaluate whether they are truly ready for the job. Meanwhile, after one of their r...

Episode 20 | The Hunt

In part two of the season finale, Nolan's discovery goes much deeper than he expected and could put his life and career in jeopardy.