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 21 airs Apr. 15, Tuesday, on CBS. Titled "Alleged," this week's new episode deals with a murder a revolting assault on a female officer. Meanwhile, the NCIS Season 11 finale title has been revealed. Watch the CBS promo video for a sneak peek on NCIS 11x21.

Spoiler alert: This feature contains spoilers on NCIS Season 11, Episode 21. Read at your own risk.

The CBS promo video tells of "a personal assault" and "an emotional case" in this week's new episode of NCIS.

In NCIS Season 11, Episode 20 ("Page Not Found"), Delilah Fielding (Margo Harshman) gets a new job overseas. McGee (Sean Murray) agrees to keep a long distance relationship. Prior to that, DiNozzo (Michael Weatherly) supports McGee's decision to ask Delilah to move in.

In this week's new episode, McGee and DiNozzo "start a juice cleanse to purge their bodies of impurities," according to NCIS 11x21 spoilers in the CBS press release. This develops as Gibbs (Mark Harmon) and team look into a rural road murder and an attack on the victim's fellow female officer.

Kelli Williams and Liz Holtan guest stars as NCIS Special Agent Maureen Cabot and Navy Ensign Holly Farrell, respectively. NCIS Season 11, Episode 21 was written by Scott Williams and directed by Arvin Brown, reports SpoilerTV.

Watch the NCIS Season 11, Episode 21 CBS promo video here or scroll down to play the video.

Meanwhile, the NCIS Season 11 finale title has been announced in a SpoilerTV update. Showrunner Gary Glasberg has said in media interviews that the season finale is the show's tribute to the late Ralph Waite, who played Jackson Gibbs in the series. The reported finale title, "Honour Thy Father," reconciles with Glasberg's statements.

Fans are speculating the NCIS Season 11 finale could be the most emotional season cap in the crime series since the death of Agent Todd (Sasha Alexander). Glasberg also hinted the usual riveting finale action happens in the penultimate episode, which will be Tony-centric.

Now that updates on NCIS Season 11 finale are out, Tiva fans are losing hope that Cote de Pablo would "visit" the team as Ziva David. Many of them believe this is one of the weaker NCIS seasons. Those who did not care about the Tiva ship, however, are more concerned about fresh stories and creative character developments for those who remain in the show.

WATCH: NCIS Season 11, Episode 21 Sneak Preview ('Alleged) | CBS Promo Video on YouTube

NCIS Season 11 airs Tuesdays on CBS. Watch new episodes on CBS.com or On Demand.

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