WARNING: This article contains spoilers for NCIS: Los Angeles season 10 finale spoilers. Read at your own risk.

NCIS: Los Angeles season 10 finale is arriving later this week, and it will finally feature another JAG star, Catherine Bell, and she will reprise her role in the series as Sarah "Mac" MacKenzie. There are a lot of things to anticipate in this episode, especially since this would be the season finale.

Going back in the recently aired episode, JAG star David James Elliott returns as Harmon "Harm" Rabb, Jr. His arrival on the NCIS world made many fans excited, largely because they haven't seen him for almost two decades. Now, another JAG star is coming to the NCIS franchise, and that would be Catherine Bell's character, Sarah MacKenzie.

According to the synopsis of NCIS: Los Angeles season 10 finale, titled "False Flag," Sam and Callen would be working with Harm so they could locate the group of ISIS sympathizers aboard the USS Allegiance. And then, Hetty will enlist her friend Lieutenant Colonel Sarah "Mac" Mackenzie to help obtain information from a Russian diplomat.

What's interesting about this finale episode is that Hetty and Mac are friends - there's something incredible about that though it's unknown how they established their friendship. But then, it's nice to know that there are people from the NCIS world and JAG world who are friends.

Mac's help in this episode is useful, specifically in resolving a possible global crisis. And as for Harm, he needs to take down some dangerous people aboard his ship. Thus, NCIS: Los Angeles season 10 finale will be exciting especially with the addition of these two JAG stars in the series.

It is possible we'll see them more in the future, though others believed there would be a new version of JAG and that CBS is using NCIS: Los Angeles to test waters. But right now, their arrival on the NCIS world is already something, as they wouldn't be put in the final episode for nothing. Their roles are useful, and they could help the team in resolving problems.

Meanwhile, aside from Harm and Mac's role here, there are also other things to look forward in the finale episode. For instance, some viewers are wondering if Eric and Nell have plans to stick around with the team for a long time, while others want to find out who among the main characters would make a surprise decision.

NCIS: Los Angeles season 10 finale will air on Sunday, May 19, on the CBS Television Network.