The Rookie

After rushing his son to the hospital following his collapse, Nolan is reunited with his ex-wife, and they must come together to help their son; Detective Lopez discovers La Fiera is in the same hospital and wants to find out exactly why.

The president visits Los Angeles.

When professor Fiona Ryan's car window is smashed following a series of mysterious notes, Nolan volunteers to guard her house overnight; Lucy notices that Tim is being much nicer to his new trainee than he was with her and she does not like it.

Nolan makes a quiet arrest; Lucy and Celina race to rescue a kidnapping victim; Harper and Lopez help outsmart a killer; Miles visits a familiar face.

Officer Nolan mildly injures himself while chasing down a shoplifter and the local district attorney wants to charge the suspect with assault, despite Nolan's wishes; Lucy goes undercover; Lopez's wedding venue is seized by the FBI.

Officers Nolan and Bradford hope they can de-escalate a drug war before any innocent lives are lost; Officer Harper hopes she can get Officer Chen ready to go under cover.

Nearing the end of his training, Nolan faces his biggest challenge as a police officer yet when he must come to terms with the choices he has made in pursuit of the truth.

Officer John Nolan and Officer Nyla Harper are assigned to a community policing center in an attempt to rebuild their station's reputation in the community.

Officer John Nolan's mom makes an unannounced visit, which complicates his life; Sgt. Grey considers retiring.

Officer Nolan is taken hostage by a man with nothing to lose; Officer Jackson and his training officer, Officer Doug Stanton, reach a tipping point in their relationship that could end Jackson's career.

Officer Nolan's decision to return to school to become a training officer proves to be much harder than he expected; Officer Chen considers going into undercover work after getting a taste of the job.

Officer Jackson West's relationship with his new training officer, Stanton, escalates, and he begins to work with Sgt. Grey to find a solution.

When a new designer drug hits the streets, Officer Nolan and the team have a Halloween they won't soon forget; Lucy questions whether her apartment building might be haunted.

An Amber Alert sends the team on a race against time to find a newborn infant who was stolen from a local hospital; Officers Jackson and Chen work their last shift as rookies as Officer Nolan continues for 30 more days.

Officer Nolan, Officer Harper and Detective Lopez are assigned to the kidnapping of the son of a criminal court judge who has a long list of enemies who could possibly be involved.

Officer Nolan and Bailey discover there's more to Fred's death than meets the eye; Officer Chen and Officer Bradford demand a treasure hunt rematch and enlist Officer Grey to help set the terms to a new bet.

Officer Nolan and Officer Chen's run-in with an infamous thief tips them off to a potentially big heist surrounding the Getty's big gala event; Nolan works up the courage to ask Bailey out on a date.

Officers Nolan and Chen report to a structure fire and suspect that there is more to the situation than meets the eye; after a sniper shooting, the team searches for the shooter and discovers that the perpetrator has a connection to one of its own.

Officer Nolan and the entire team race against the clock to locate Lopez after she is kidnapped on her wedding day, not only to save her life but her unborn child's.

Harper and Nolan respond to a bank robbery in progress and realize the motives of the thief run much deeper than just needing money; Jackson and Chen's first day riding without training officers isn't what they thought it would be.

Officer Nolan and team are on a hunt to retrieve a buried stash of gold before any treasure seekers get hurt; Bradford is tasked with encouraging the oldest cop at the station to retire and invites him to ride with him.

Officer Nolan and Officer Chen search for a missing person who may have international ties, putting everyone's lives in danger; Harper continues the search for a serial arsonist; Wesley must overcome an impossible task.

Desperate to break free from his connection to Elijah, Wesley tries to plant a listening device in his office to incriminate him; Officer Bradford and his sister, Genny, learn an unsettling truth about their father.

Now that John Nolan knows about Bailey's past, he must decide if they still have a future; when a plane crashes in the middle of the city, the team races to find out why.

The team goes on a city-wide hunt for an individual who is threatening to cause a mass casualty event; Tim's sister shows up unannounced with some surprising news; Lopez continues her inner struggle over Wesley's deal with Elijah.

In the midst of a heatwave and a citywide blackout, Nolan and Aaron follow increasingly large leads after they discover criminals hiding at the station; Chen makes an alarming discovery after being called to a scene with a pungent smell.

Officer John Nolan and Bailey search for a mystery gunman after a shooting hits a little too close to home; Aaron struggles to live within his means; Wesley suspects that a judge is taking bribes.

The team investigates a pattern of kidnappings, which leads them to a discovery that hits close to home with one of their own; Lucy and Tim's relationship is put to the test as they begin to feel the hard hours of their jobs.

Officer Nolan's trust is tested when he tries to help the previous owner of his home reconnect with his family; Officer Harper's overnight visit with her daughter is put into jeopardy when her past undercover life resurfaces again.

Officer Nolan kicks off his birthday by babysitting a crime scene at a law office; Officer Bradford and Officer West are set to receive special awards; Sgt. Grey rides patrol with Officer Harper after she requests an early annual evaluation.

When Dim goes missing, Officer Chen and Sgt. Bradford, along with the CIA, set out to find him and enlist the help of Juicy.

The team must stop a militia from detonating a highly combustible truck in their possession; Nolan, Thorson, Juarez and Harper search for three men who may have been exposed to Ebola.

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.

As the rookies prepare for a big exam to see who moves on to the next stage of training, Nolan and Bishop are called to the scene of a murder and learn that the victim may be tied to a potential terrorist attack on the city of Los Angeles.

Officer Lucy Chen goes undercover to infiltrate an illegal firearm operation; Detective Harper and Officer John Nolan work together to solve a mystery involving severed limbs found around the city.

Officer Nolan gets a lesson in respect after his arrest of a gang member leads to a free-for-all on his life; officer Chen and Bradford pull over Mario Lopez, who thinks he can talk his way out of a traffic violation.

When a cop is arrested by Internal Affairs for lying on the witness stand, it leads to the release of three felons whose cases he worked on; Officer Nolan finds out he is being sued by a man who claims he used excessive force which led to an injury.

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

When a prison bus crashes, some inmates face severe injuries while others seek an opportunity to flee; in the wake of the accident, officer Nolan tries to impress an FBI hostage negotiator while tracking down an escaped convict.

The rookies are really put to the test when they are forced to make all decisions while on patrol; officer Nolan tries to prove he has been progressing faster than the other rookies to justify his desire of becoming a detective within five years.

Officer Tim Bradford's ex-wife returns and asks the team to help her save someone from her undercover past; Isabel's return also creates additional pressure in Lucy and Tim's relationship as they assist in the search.

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.

The team must try to understand why they were targeted and if there is a bigger plan in place; Nolan must survive his last shift before his wedding to Bailey.

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 life.

Sgt. Gray informs the rookies that they must track down a specific set of crimes in a 48-hour period to qualify for their final exam; Nolan and Bishop answer a silent alarm call at will.i.am's house.

With help from the FBI, Lopez puts everything on the line to help Elijah Stone take down a gang leader in exchange for her safety; Nolan and Bailey must deal with the secrets and shady dealings his late mother left behind.

Now that Elijah and Abril have become allies, the team must rely on Monica, Elijah's lawyer, to uncover their plans; Officers Nolan and Juarez reopen her sister's case and discover a discrepancy that leads them on a new trail.

The team comes together to celebrate John and Bailey's wedding; Celina discovers a discrepancy in her case, leading to a new discovery; Lucy and Tim's relationship is put to the test.

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

A massive earthquake rocks the city and throws everything into chaos; Russo recommends Officer Nolan for a protective detail of Brad Hayes, a man whose dealings have put a target on his head.

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.

After one of their own is shot, the team suffers a series of close calls and realizes their division may be a target for a group of masked assailants.

Officer Nolan gets off to a rocky start after being introduced to his new training officer; Officer Bradford struggles to think of an appropriate birthday gift for Rachel; Officer Lopez finds herself navigating a case that triggers a personal memory.

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

Officer Nolan's relationship with his first confidential informant is tested when he discovers her back on the street dealing drugs; Lucy's fear of dating following her abduction is beginning to threaten her friendship with Jackson.

Officer Nolan and the entire team are in a desperate search to rescue Officer Chen after her abduction; Officer Lopez discovers Wesley unconscious from a dangerous cocktail of alcohol and pills.

Nolan is given some life-changing news and invites Grace over for a home-cooked meal in his newly remodeled kitchen; each unit is tasked with following up on dormant cases in hopes of uncovering new leads.

Officer Nolan learns his identity has been stolen and could jeopardize his position as an officer; Sgt. Grey must testify at the parole hearing of the man who shot him and murdered his partner.

Nolan takes his son's fiancée, Abigail, on a ride-along after she shows interest in becoming a police officer; Jackson's relationship becomes increasingly complicated.

Officer Nolan and the team are charged with escorting a notorious female serial killer to the graves of her victims; Officer Chen meets a seemingly perfect man who sparks her interest; Officer Lopez worries about Wesley.

Nolan's discovery goes much deeper than he expected and could put his life and career in jeopardy.

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.

Officers Nolan, Chen and West are squeezed harder than ever before as their training officers evaluate whether they are truly ready for the job; one of the rookie classmates is involved in a shooting.

When a toddler is found at the scene of a crime, John and Bailey must decide whether to let the child go to a shelter for the night or care for her themselves; when someone from his past returns, Tim disappears and leaves Lucy in the dark.

It's Officer Aaron Thorsen's first day back since the assault, and he's tasked with a series of high-stress cases to determine whether he's ready to work; the team investigates a homicide case with a potential tie to the pentagram killer.

Nolan and Bailey's honeymoon is more of a nightmare than a dream when it turns into an active crime scene; Tim and Celina partner up and must uncover the identity of a John Doe.

Officers Nolan and Harper escort four juvenile offenders to a Scared Straight program at a correctional facility, but it quickly becomes a riotous situation; Nolan is uncertain about Grace after she fails to introduce him to her ex-husband.

The LAPD, FBI and Interpol work with Monica Stevens in Prague to target high-value terrorists operating within and outside the United States.