NCIS: Los Angeles - Season 9 - Eps 18: Vendetta
Callen and Sam join forces with Anna Kolcheck and the Bureau of Alcohol, Tobacco and Firearms (ATF), when Arkady Kolcheck warns NCIS that a notorious international weapons dealer has returned to the states. Also, the case requires Eric to go undercover as a bank IT technician.
About NCIS: Los Angeles

Title: NCIS: Los Angeles
First Air Date: 2009-09-22
Last Air Date: 2023-05-21
Status: Ended
Rating: 7.536/10 (from 1178 votes)
Language: EN
Seasons: 15
Total Episodes: 323
Network: CBS
Genres: Action & Adventure, Drama, Crime, Mystery
Production Companies: Shane Brennan Productions, Belisarius Productions, CBS Studios
Synopsis
The exploits of the Los Angeles–based Office of Special Projects (OSP), an elite division of the Naval Criminal Investigative Service that specializes in undercover assignments.
Cast

Chris O'Donnell
G. Callen

Daniela Ruah
Kensi Blye

Eric Christian Olsen
Marty Deeks

Medalion Rahimi
Fatima Namazi

Caleb Castille
Devin Rountree

Gerald McRaney
Hollace Kilbride

LL Cool J
Sam Hanna