Sydney Jones (played Ashley Rae Spillers) is in trouble in an upcoming episode of NCIS: Los Angeles. She's going to ask for her sisters' help because she could end up in an unfortunate predicament involving the Russians.

According to the episode synopsis for NCIS: Los Angeles season 10 episode 18, Sydney will need her sister Nell (played by Renée Felice Smith) to bail her out as she gets into trouble with someone from her high school. They have Russians asking them to steal intelligence information from the Department of Defense, but that could land them in bigger trouble.

Nell hasn't had much major screen time in NCIS: Los Angeles season 10 so this episode should be good news for fans who love her character. It's also a great chance to watch Spillers reprise her role since viewers last saw her in season 9.

The writers of NCIS: Los Angeles have plans to make this episode a lot more personal for Nell and Sydney. Viewers should expect to get to know these siblings' relationship dynamics and have more insights into their characters better.

NCIS: Los Angeles season 10 episode 18 will also feature Peter Jacobson (as Special Prosecutor John Rogers) back at the office for the performance reviews. So, despite the sibling drama between the Jones, the upcoming episode appears to be tamer and lighter than the intense installment that aired last Sunday, March 17.

NCIS: Los Angeles season 10 episode 17 was the big Kensi (played by Daniela Ruah) and Deeks (played by Eric Christian Olsen) wedding that fans have waited for. It also was an emotional, celebratory episode because it featured the return of a beloved character in Hetty Lange (played by Linda Hunt).

The actress finally marked her comeback after being saddled for most of the season due to a car accident in real life. As Hetty, she sure made quite a grand entrance as the wedding was on the verge of not being able to proceed due to some Russian interference.

But Hetty took care of the problem and even initiated the rites to officially marry Kensi and Deeks. So, despite all the hitches, the couple finally said their vows.

Ruah told TV Insider that she cried her eyes out, as did the rest of the cast, during the filming of the wedding episode because Hunt was finally back on the set. "We've just been getting updates on her wellbeing from our higher-ups, and we were just over the moon," Ruah said.

It's unclear, however, if Hunt is back for good permanently or if she has to continue resting for the rest of the season. The producers said the actress is still on the road to recovery, but she's been raring to go back to work.