8.0/10397 votes#1 - Algún Día
Season 21 Episode 1 - Aired 2/12/2024
The NCIS team must help Torres when he puts his future at stake by confronting the man who tormented his family when he was a child.
Director: Diana Valentine
Writer: Christopher J. Waild
9.6/101,065 votes#2 - The Stories We Leave Behind
Season 21 Episode 2 - Aired 2/19/2024
As NCIS mourns the loss of Ducky, the agents find comfort in working on one of his unfinished cases involving a woman whose father was dishonorably discharged from the Marines.
Director: Michael Zinberg
Writer: Scott Williams, Brian Dietzen
8.1/10354 votes#3 - Lifeline
Season 21 Episode 3 - Aired 2/26/2024
When the NCIS team engages in Walk-a-Mile day to gain a new perspectives on different departments, things take a turn when Kasie receives a distress call from a mysterious man.
Director: Rocky Carroll
Writer: Marco Schnabel
7.7/10324 votes#4 - Left Unsaid
Season 21 Episode 4 - Aired 3/4/2024
The NCIS team is in a race against time to find a missing officer who disappeared during his wedding proposal.
Director: Daniela Ruah
Writer: Yasemin Yilmaz
8.0/10321 votes#5 - The Plan
Season 21 Episode 5 - Aired 3/25/2024
With the help of Knight's dad, NCIS works to unravel the mystery of a recently used service weapon belonging to a missing agent. Also, McGee is in a tailspin when DNA results reveal a close relative he was unaware of.
Director: Lionel Coleman
Writer: Katherine Beattie, Chad Gomez Creasey
7.7/10317 votes#6 - Strange Invaders
Season 21 Episode 6 - Aired 4/1/2024
After discovering a navy pilot's body riddled with unusual wounds, NCIS' investigation draws the team into the rabbit hole of UFO conspiracy theories.
Director: Claudia Yarmy
Writer: Steven D. Binder, Gina Gold, Aurorae Khoo
8.8/10466 votes#7 - A Thousand Yards
Season 21 Episode 7 - Aired 4/15/2024
NCIS comes under attack by a mysterious enemy from the past. Also, Vance tries to mend fences with his estranged son by explaining why, despite the ongoing dangers of his job, he still chooses to stay at NCIS.
Director: Diana Valentine
Writer: Christopher J. Waild
8.1/10291 votes#8 - Heartless
Season 21 Episode 8 - Aired 4/22/2024
The NCIS team looks for a motive behind the kidnapping and death of a famous heart surgeon.
Director: Michael Zinberg
Writer: Sydney Mitchel
7.2/10293 votes#9 - Prime Cut
Season 21 Episode 9 - Aired 4/29/2024
After discovering the remains of a Marine captain, the NCIS team travels to Texas to interrogate the suspected killer.
Director: Diana Valentine
Writer: Marco Schnabel, Chad Gomez Creasey
7.7/10286 votes#10 - Reef Madness
Season 21 Episode 10 - Aired 5/6/2024
Parker and Knight discover three bodies on an old Navy ship that's about to be sunk and turned into an artificial reef, when they're suddenly locked inside by a mysterious figure. Also, Vance offers Knight a unique opportunity.
Director: José Clemente Hernandez
Writer: Scott Williams
The Best Episodes of NCIS Season 21
Every episode of NCIS Season 21 ranked from best to worst. Discover the Best Episodes of NCIS Season 21!
From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has a shred of evidence connected to...
Genres:CrimeDramaAction & Adventure
Network:CBS
Season 21 Ratings Summary
"Algún Día" is the best rated episode of "NCIS" season 21. It scored 8/10 based on 397 votes. Directed by Diana Valentine and written by Christopher J. Waild, it aired on 2/12/2024. This episode is rated 1.6 points higher than the second-best, "The Stories We Leave Behind".