Knockout is the eighteenth episode in Season Six as well as the 131st episode of the entire NCIS series.
When a friend of Vance's is murdered, Vance heads to Chicago with Ziva and McGee and begins his own investigation into the death, prompting Gibbs to dig into Vance's past where he soon discovers that all is not what it seems....
In Chicago, as funky electronic music plays in the background, the camera closes in on a hotel.
A lift door then opens and two people get out with the camera focusing on an African-American woman, starting at her legs before it pans up to her cleverage.
As she turns around, Tara Kole who's removing her coat tells the man accompanying her to post up here while she takes care of business.
The Unnamed Security Guard silently nods, glancing around for any sign of danger.
Tara then heads into the hotel room where after closing the door, she sees a man standing on the balacoy of the room while the shower is heard splashing in the background.
"Is that for me?", she wonders.
She then places her belongings down onto the bed and removes her skirt before heading into the bathroom.
In the room, the mysterious man grabs a pen and then scribbles something down onto a single card. He then heads over to the hotel door and peeks through the keyhole, seeing the security guard standing outside.
Outside, in the hall, the small card slips through the door.
The guard then leans down to pick up the note which reads "Bend over and read this note".
As the guard does just that, the hotel door opens and the man jams a syringe into the guard's backside which knocks the guard out.
Once the guard's in the room, McGee slams the door shut.
Back in the hotel, Tara then turns around when she sees the mysterious man, causing her to say "Teek, is that you?".
The man tells Tara that she's got a decision to make.
It then cuts to show that the mysterious man is none other than NCIS Director Leon Vance who asks Tara if they walk out of here or does he have to carry her?
In Chicago, as she and McGee walk down a corridor with Vance, Ziva remarks that there was no sign of foul play and Tyler Owens was last seen ten days ago at his place of business, the South Side Gym.
- Leon Vance's wife, Jackie, his son Jared and daughter Deliah 'Lily' Vance are introduced for the first time.
- It's revealed that Vance was once a boxer.
- Tony reveals he's been in a slump with women since he and Jeanne Beneoit broke up.
|Leroy Jethro Gibbs||Mark Harmon||NCIS Special Agent in charge of the NCIS Major Case Response Team.|
|Anthony DiNozzo||Michael Weatherly||Senior Special Agent and second-in-command of the NCIS Major Case Response Team.|
|Ziva David||Cote de Pablo||Mossad/NCIS Liaison Officer and a member of the NCIS Major Case Response Team.|
|Timothy McGee||Sean Murray (actor)||Junior Special Agent of the NCIS Major Case Response team.|
|Abigail Sciuto||Pauley Perrette||Forensic Specialist associated with the NCIS Major Case Response Team.|
|Leon Vance||Rocky Carroll||Director of NCIS.|
|Donald Mallard||David McCallum||Chief Medical Examiner associated with the NCIS Major Case Response Team.|
|James Palmer||Brian Dietzen||Assistant Medical Examiner.|
|Jackie Vance||Paula Newsome||Director Vance's wife.|
|Joe Banks||Obba Babatundé||Businessman and rival of Vance's.|
|Tara Kole||Rochelle Aytes||Wife of Joe Banks and a former girlfriend of Vance's.|
|Issac Curtis||Lou Beatty Jr.||A man who appears in the episode.|
|Tatum Dell||Ray Campbell||A man who appears in the episode.|
|Xavier Rios||Oscar Torre||A man who appears in the episode.|
|Jared Vance||Khamani Griffin||Director Vance's young son.|
|Delilah Vance||China Anne McClain||Director Vance's young daughter who is also called Lily.|
|Campbell||Amin Joseph||A man who appears in the episode.|
|Spit||Deprece Reddick||A man who appears in the episode.|
|Unnamed Security Guard||Theo Breaux||Joe Banks's security guard.|