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. Meanwhile, after Officer Lopez discovers Wesley unconscious from a dangerous cocktail of alcohol and pills, she is forced to keep him close by.

Officer Nolan and Celina take on a special case; meanwhile, Monica enlists help to identify her attackers. Elsewhere, Lopez and Harper discover a connection to the trail of crimes.

Nyla remains suspicious of Liam Glasser as a wildfire erupts, causing chaos in the city. Meanwhile, James tries to help a friend, and Seth makes a costly mistake, putting two of their own in danger.

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

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

The team has mixed feelings when a familiar face returns hoping to prove himself. Meanwhile, an influencer gets his fans to come after Wesley, and Tim supports Lucy as she prepares for the sergeant's exam.

Officer John Nolan is once again face-to-face with serial killer Rosalind, and she wants him to know she's not done with him yet. Meanwhile, officers Bradford and Chen work undercover with Detective Lopez and the Las Vegas Police Department to arrest leaders of a major criminal enterprise.

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. Elsewhere, the team investigates a homicide case with a potential tie to the pentagram killer.

An April Fools' prank on LAPD’s social media leads to citywide chaos. Meanwhile, John's T.O. skills are tested, Wesley is assigned a challenging case, and Tim and Lucy play a joke on the team.

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. Meanwhile, when someone from his past returns, Tim disappears and leaves Lucy in the dark.

Sgt. Grey helps the team prepare for their biggest mission yet. Meanwhile, Aaron, Lopez, Celina, Tim and Smitty discover a surprising connection in their case.

Ahead of Bailey's return home, John looks for clues to locate Jason Wyler. Then, Tim and Lucy swap rookies; a friendly face resurfaces at the station, and Wesley feels unsettled over Angela.

It’s Valentine’s Day, and Lieutenant Grey gives Tim and Lucy an unromantic assignment, while John and Celina track down a missing girl. Later, the team sharpens up for a charity gala where multiple relationships come to a head.

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.

In the aftermath of the assaults in the explosive season five finale, the team must now try to understand why they were targeted and if there is a bigger plan in place. Meanwhile, Nolan must survive his last shift before his wedding to Bailey.

Following their time as foster parents, Bailey has decided she wants to have a baby and forces John to reconsider their decision to not have children. Meanwhile, John and Celina discover a prison escapee whom they fear is out for revenge and race to find her before it is too late.

Now recovering from a gunshot wound and feeling the effects of his age, John and the team welcome two new rookies and continue the hunt for two dangerous inmates with very personal vendettas following their prison escape.

Following his stint at the LAPD, Wesley returns to the district attorney's office where his past connects him to the team's investigation. Meanwhile, Bailey and John have conflicting feelings over safety, while Lucy grows suspicious of Seth.

On Celina's last day as a rookie, John gives her one final test. Meanwhile, Bailey makes a new friend, and Lucy places her faith in Seth for an undercover assignment.

John, Lucy and Angela investigate the suspicious stabbing of three teenage girls. Back at the station, the team experiences technical difficulties while managing a group of prisoners and a wild animal.

John and Celina find themselves in a hostage situation while undercover for a public safety initiative. While Angela and Nyla investigate the suspects, Tim challenges Lucy’s decision-making skills.

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

When two teenagers go missing, it is up to the entire team to find the girls and uncover the truth about their disappearance. Meanwhile, Lopez and Harper are on a different kind of investigation – the search for the perfect nanny.

The team searches for a serial killer as Nyla struggles with the aftermath following the attack. Lucy’s relationship with Seth takes a turn, while Bailey battles her fear of Jason Wyler.

The team mobilizes to locate a suspect after a deadly series of events affects one of their own. Meanwhile, Celina takes on her first case with Bailey's help.