The Season 12, Episode 21 airing of "NCIS" finds Ellie Bishop and Leroy Gibbs heading to Afghanistan together to take on what's described as a "huge mission" related to the murder of a Marine by a terror group that is holding another military officer hostage overseas.

According to Carter Matt, the "Lost in Translation" episode also focuses on DiNozzo's anger on learning McGee has been selected to be the new face of "NCIS" recruitment brochures and will be featured on an advertisement aimed at recruiting and enticing other people to join the organization. 

Episode 21 will air on April 14 on CBS. 

In coming scenes, the website predicts some "very dramatic moments ahead, including a potential cliffhanger and some reasons to be afraid for the steam's mental stability."

TV Guide reports that in "The No Good" episode, which aired the previous week, DiNozzo and ATF Special Agent girlfriend Zoe Keates partnered to investigate the mysterious case of a murder weapon being initially purchased as part of an ATF sting operation.

The episode also found Tony opening up about his feelings for Keates, as he shared with Gibbs he feels their relationship has outgrown the honeymoon phase. Zoe mistakenly overhears him over the radio he failed to mute and later admits to him how much she wants their union to work.

In 2011, the show was voted America's favorite TV show and Harmon was selected as America's favorite TV star, according to TV by the Numbers. Network execs have yet to officially declare if the show will be returning for another season, though executive producer Gary Glasberg did recently confirm that this season's finale will end with a cliffhanger, increasing the need for a new season pick up, according to Renew Cancel TV.