This one-hour ET special gives fans a behind-the-scenes look at the franchise's 1,000th episode and includes exclusive interviews with the stars of NCIS, NCIS: LOS ANGELES, NCIS: NEW ORLEANS, NCIS: HAWAI'I and NCIS: SYDNEY. The cast and guest stars share favorite memories and behind-the-scenes moments from 20 years' worth of never-before-seen interviews from the ET vault.

Algún Día

S21 E1

Feb 13, 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.

The Stories We Leave Behind

S21 E2

Feb 20, 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.

Lifeline

S21 E3

Feb 27, 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.

Left Unsaid

S21 E4

Mar 5, 2024

The NCIS team is in a race against time to find a missing officer who disappeared during his wedding proposal.

The Plan

S21 E5

Mar 26, 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.

Strange Invaders

S21 E6

Apr 2, 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.

A Thousand Yards

S21 E7

Apr 16, 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.