Backstabbers: The team investigates a train robbery. Also, Officer Harper takes matters into her own hands as she makes a life-changing decision. (S4, ep 18) [S,AD]
Coding: Officer Nolan and the team negotiate with a distraught man who is holding a hospital hostage to ensure his wife receives a lifesaving surgery. (S4, ep 17) [S,AD]
Hit List: When two witnesses for an upcoming grand jury case are murdered, the team must track down the killers before it's too late. (S4, ep 15) [S,AD]
Long Shot: A Skip Tracer reaches out to Nolan and Harper for help with a case. Chen and Bradford hunt for a perpetrator on a citywide crime spree. (S4, ep 14) [S,AD]
The Knock: The team responds when a severed hand is found washed up on the beach. Meanwhile, Tim invites Lucy on a double date with him and Ashley. (S4, ep 12) [S,AD]
End Game: The team must rely on a criminal and his expertise when a bigger threat looms. Officers Chena and Bradford investigate the murder of a teenager. (S4, ep 11) [S,AD]
Heart Beat: Nolan has a big decision to make about Bailey. Meanwhile, the team races to investigate when a plane crashes in the middle of the city. (S4, ep 10) [S,AD]
Fire Fight: Officer Nolan discovers there's more to Fred's death than meets the eye. Officers Chen and Bradford demand a treasure hunt rematch. (S4, ep 7) [S,AD]
Poetic Justice: After a prisoner posts a poem presenting a riddle on Reddit, Officer Nolan and team race to solve it before anyone get hurt. (S4, ep 6) [S,AD]
In The Line of Fire: Officers Nolan and Chen report to a structure fire and suspect that there is more to the situation than meets the eye. (S4, ep 3) [S,AD]
Five Minutes: Officer Nolan and Officer Chen's run-in with an infamous thief tips them off to a potentially big heist surrounding the Getty's gala event. (S4, ep 2) [S,AD]
Life and Death: Officer Nolan and the entire team race against the clock to locate Lopez, who is in grave danger after being kidnapped on her wedding day. (S4, ep 1) [S,AD]
New Blood: Nolan volunteers to guard Professor Fiona Ryan's house overnight, after a series of mysterious notes and the vandalism of her car. (S3, ep 11) [S,AD]
Amber: The team race to find a newborn baby who was stolen from a local hospital. Officers Jackson and Chen work their last shifts as rookies. (S3, ep 9) [S,AD]
Bad Blood: Officers Nolan, Harper and Lopez dive into a complex case when the son of a criminal court judge with many enemies is kidnapped. (S3, ep 8) [S,AD]
Lockdown: Officer Nolan is taken hostage. Officer Jackson and Officer Stanton's strained relationship reaches a tipping point that puts Jackson in danger. (S3, ep 5) [S,AD]
Sabotage: Officer Jackson West seeks out Sgt Grey's help for a solution when his relationship with Stanton - his new training officer, takes a turn. (S3, ep 4) [S,AD]
The Q Word: The pressure is on for Officers Nolan, Chen and West as their training officers evaluate whether they are truly ready for the job. (S2, ep 19) [S,AD]
Under the Gun: Officer Nolan and Harper are thrown into a scene of chaos when they escort four young offenders to a correctional facility. (S2, ep 18) [S,AD]
Control: Officer Nolan discovers his confidential informant has gone back to her criminal ways. Lucy's friendship with Jackson is tested. (S2, ep 17) [S,AD]
The Overnight: Officers Chen and Bradford meet Ryan Seacrest and the judges when they respond to a call at the American Idol auditions in LA. (S2, ep 16) [S,AD]
Follow-Up Day: Each unit is tasked with following up on dormant cases in the hope of discovering new leads. Meanwhile, Nolan gets some life-changing news. (S2, ep 13) [S,AD]
Warriors And Guardians: Officer Nolan must adjust to his new training officer's unconventional quirks that come from her stint as undercover detective. (S2, ep 4) [S,AD]
The Night General: Nolan has a run-in with an ex-flame. Officer Bradford is forced to accept help from Officer Chen as he preps for an exam. (S2, ep 2) [S,AD]
Impact: Officer Bradford fights for his life as the rest of the team deal with the fallout from the attack in LA, and later, the Rookies learn their fates. (S2, ep 1) [S,AD]
Free Fall: As the Rookies prepare for their final exams, Nolan and Bishop face a different kind of test when they stumble on a terror plot. Season finale. (S1, ep 20) [S,AD]
Homefront: The team are tasked with checking in on recently-freed felons, and someone from Officer Bishop's past puts her in a dangerous situation. (S1, ep 18) [S,AD]
Manhunt: A prison bus crash causes chaos as all units must respond to both inmates with severe injuries and others taking the opportunity to flee. (S1, ep 15) [S,AD]
Standoff: Officer Bradford's wife has been non-fatally shot, and he vows to track down the man who did it. Pressure mounts for Officer Nolan. (S1, ep 9) [S,AD]