The best episode directed by Diana Valentine is "The Circle", rated 10/10 from 2 user votes. It was "written by Andrew Bartels". "The Circle" aired on 2/23/2020 and is rated 1.0 point(s) higher than their second highest rated, "Better Angels".
Anna Kolcheck returns to warn Callen that he is in danger and he must now work with an archenemy to stop an underground trafficking ring.
Director: Diana Valentine
Writer: Andrew Bartels
The NCIS team works with the Global Criminal Tribunal when a Syrian seeking justice, David Sarraf, is brutally attacked while delivering evidence that would prove chemical weapons were used on civilians. Also, Kensi stays at the crime scene and comforts Sarraf who is pinned behind a vehicle.
Director: Diana Valentine
Writer: Frank Military
When the mother of a young boy goes missing, the NCIS team sets out to find her and learns they aren’t the only ones searching for her.
Director: Diana Valentine
Writer: Jan Nash
The MPU works to track down the kidnapped son of a doctor, but the case takes a turn when his mother gets in direct contact with the kidnapper. Meanwhile, Kemi expresses her concerns for Sidney's wellbeing to Nikki and Jason.
Director: Diana Valentine
Writer: Justin Peacock
BAU team investigates a series of home invasions in upscale neighborhoods in San Diego involving casualties.
Director: Diana Valentine
Writer: Erik Stiller
After an NSA analyst is found eaten by a shark, the team's investigation leads them to a cartel's money-laundering scheme and sends Callen into a mental asylum to find a key witness; Kensi struggles with her therapy.
Director: Diana Valentine
Writer: Shane Brennan
After napalm is detected at a crime scene, the NCIS team investigates the sole casualty for possible links to terrorism.
Director: Diana Valentine
Writer: Joe Sachs
While investigating the suicide of a retired Navy officer who left a rare, valuable - and possibly stolen - coin to the National Museum of the Navy, the team imagines themselves in his life story in order to piece together how the coin ended up in his possession.
Director: Diana Valentine
Writer: Christopher J. Waild
While investigating the death of an intruder at Quantico, Jimmy and Kasie are exposed to a deadly biotoxin; the NCIS team calls on Dr. Carol Wilson for help as they race to find the antidote; Torres tries to distract Jimmy's daughter.
Director: Diana Valentine
Writer: Scott Williams
When Sebastian is injured while unsuccessfully trying to prevent a kidnapping, NCIS races to find the missing woman and her abductors; the team gets a peek into Agent Carter's personal life.
Director: Diana Valentine
Writer: Chad Gomez Creasey
When a Navy therapist with a high level of security clearance is murdered, Pride and the team discover that she was working around the system to get justice for victims of sexual assault. Meanwhile, Carter's mother confronts him when he refuses to talk to the FBI for a background check on her behalf, and Sebastian starts to form a bond with a key witness who was hit hard by the COVID-19 pandemic.
Director: Diana Valentine
Writer: Stephanie Sengupta
Station 19 and Station 23 each attempt to celebrate Thanksgiving following the fallout from the neighborhood explosion. The firefighters come together to cook, toast to loved ones they have lost, and celebrate the families they have become.
Director: Diana Valentine
Writer: Meghann Plunkett
When Conrad confronts a pharmacy owner about fraudulent prescriptions being filled under his name, the situation takes a dangerous turn; the ER is sent into chaos when a street racing accident results in multiple severe injuries.
Director: Diana Valentine
Writer: Eric I. Lu
The MPU searches for a college student after she goes missing during a house party. Meanwhile, Sidney and Keith try to adjust to normal life again.
Director: Diana Valentine
Writer: John Eisendrath
The team learns that someone from their past is targeting one of their own. Nate Getz attempts to help Nell get through a traumatic experience.
Director: Diana Valentine
Writer: R. Scott Gemmill
When two drastically different murder sprees are committed in Burlington, Vermont, the BAU concludes that a serial killer suffering from sleepwalking is responsible for both crimes. Meanwhile, Alvez presents Shaw with a shocking ultimatum after Reid is assaulted in prison.
Director: Diana Valentine
Writer: Dania Bennett
Following a series of fatal shootings, the BAU team travels to Des Plaines, Ill. to investigate what appears to be a copycat serial killer. Their efforts are thrown off track when members of the BAU are targeted.
Director: Diana Valentine
Writer: Bobby Chacon
The NCIS team investigates the death of a Navy officer whose body suddenly explodes before Jimmy can examine it.
Director: Diana Valentine
Writer: Steven D. Binder
The BAU investigates three similar crimes in which victims' remains are discovered in old suitcases.
Director: Diana Valentine
Writer: Bruce Zimmerman
The BAU is called to investigate a series of deaths in Virginia suspected by the Center for Disease Control to be caused by bio-terrorism; Garcia visits her stepbrother to take care of a family issue.
Director: Diana Valentine
Writer: Karen Maser
The NCIS team investigates the murder of a Marine Sergeant in the States who was hailed as a war hero for his efforts overseas. Also, Gibbs turns to Doctor Grace Confalone for advice after he uncharacteristically unravels and abandons his team at a crime scene investigation.
Director: Diana Valentine
Writer: Frank Cardea
NCIS investigates Marine Corporal Laney Alimonte after evidence suggests she murdered her neighbor while being treated for insomnia by a hypnotherapist. Also, Gibbs befriends his new neighbors after the 9-year-old’s baseball crashes through his window.
Director: Diana Valentine
Writer: Brendan Fehily
The discovery of two dead bodies leads the NCIS team into the wild world of modern-day treasure hunting. Also, Gibbs and Fornell get deeper into their search for the opioid kingpin.
Director: Diana Valentine
Writer: Christopher J. Waild
NCIS uncovers a secret dogfighting ring, which leads to an unexpected move by one of the team members.
Director: Diana Valentine
Writer: Brendan Fehily
NCIS tracks a stolen laptop to the uncle of a young boy, Phineas, Gibbs’ former neighbor.
Director: Diana Valentine
Writer: Steven D. Binder