NCIS: Tony & Ziva S1E5 — To Be Determined

8.2

NCIS: Tony & Ziva•Season 1•Episode 5

To Be Determined

8.2/10 · 683 votesSep 18, 202543 min

Ranked #3 of 10 in Season 1•+0.2 vs season avg

Discussion

The Missing secretary General of Interpol leads Tony and Ziva to a high security prison.

Directed byMJ Bassett

Written byJohn McNamara, Kiersten Stanley

Previous episodeE4 · Wedding Crashers Next episodeE6 · We've Got Company

Seasons1

All 1

Season 1 Episodes10

No Country Is Safe

No Friend of Mine

Cover Story

Wedding Crashers

To Be Determined

We've Got Company

Dark Mirror

Fire Sale

Ride or Die

Full Circle

Cast8

Michael Weatherly

Tony DiNozzo

Cote De Pablo

Ziva David

Isla Gie

Tali

Amita Suman

Claudette

Maximilian Osinski

Boris

Nassima Benchicou

Martine

Julian Ovenden

Jonah

Lara Rossi

Sophie

Crew5

John McNamara

Writer

Kiersten Stanley

Writer

Steve Lawes

Director of Photography

MJ Bassett

Director

Troy Takaki

Editor

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Episode Summary

"To Be Determined" is episode 5 of NCIS: Tony & Ziva season 1. It scored 8.2/10 from 683 votes, ranking #3 of 10 episodes this season (season average 8.0). Directed by MJ Bassett and written by John McNamara, Kiersten Stanley, it aired on September 18, 2025.

Next: E6 · We've Got Company Best of Season 1