Michael Weatherly
NCIS actor Michael Weatherly has been arrested for DUI. Here, he arrives at the 2014 People's Choice Awards in Los Angeles, California January 8, 2014. Reuters

"NCIS" Season 11, Episode 15, titled "Bulletproof," airs on CBS on Tuesday, Feb. 18. Fans go to YouTube to check out videos showing still photos of the next new episode. Meanwhile, David McCallum, who plays Dr Ducky Mallard, got real in an interview about Cote de Pablo's exit.

Spoiler alert: This feature contains spoilers on the next episodes of NCIS Season 11. Episode 15, "Bulletproof," is the 249th episode of the series.

In NCIS 11x15, Leroy Gibbs (Mark Harmon) and his team discover a scheme involving faulty bulletproof vests. NCIS has to identify the suppliers and warn those who got the vests - including military personnel already deployed overseas.

Meanwhile, David McCallum has gone on record to say he does not understand Cote de Pablo's departure from NCIS. Dr Ducky Mallard may have had little to say about Ziva David in NCIS Season 11. But the actor playing the role has said he felt "frustration and anger" when the actress quit the series.

McCallum told Digital Spy he couldn't understand Cote's reasons for leaving. And her exit left quite a challenge to the writers.

"This business is merciless so right away the whole team of writers gets in and rewrites the first five shows (of NCIS Season 11)," McCallum said.

It has been reported that Cote de Pablo will soon star in a Chilean film titled "The 33," with Antonio Banderas.

NCIS Season 11, Episode 15 marks the return of Margo Harshman as Delilah Fielding, the now paralysed girlfriend of Special Agent Tim McGee (Sean Murray). Their relationship is expected to be highlighted in the next new episode.

Tony DiNozzo (Michael Weatherly) and DiNozzo Sr will have their moments - some pretty big ones - in NCIS Season 11, Episode 16 - the crime drama's 250th episode. Last week, it was Ellie Bishop's (Emily Wickersham) turn to shine. She has helped put an end to the Parsa threat, and was officially welcomed into the fold by Gibbs, DiNozzo, and McGee.

Watch this video to see still photos off NCIS Season 11, Episode 15. Play the video below for more information on the episode synopsis.

NCIS Season 11, Episode 15 airs after a short series hiatus. There is no new episode this week, but the 249th and 250th episodes of the series are expected to be quite huge treats to NCIS fans.

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