The two-parter kicks off when a private plane traveling from New Orleans to D.C. becomes a "ghost plane," meaning there's no response from any of the crew or passengers on board. After the NCIS team successfully brings down the plane, in order to prevent it from crashing in a highly populated area, an examination of the manifest reveals that one of the passengers may have been Abby's (Pauley Perrette) brother, Luca (guest star Tyler Ritter).
The ensuing investigation brings Bishop (Emily Wickersham) down to New Orleans to help Pride (Scott Bakula) and his team investigate Luca's connection to the people who sabotaged the flight, while Sebastian (Rob Kerkovich) heads to D.C. to go over a key piece of evidence with Abby.
"People are going to get a deeper look into Abby, especially in how she relates to some family members. I think fans are going to be delighted to see this other side of her get fleshed out more," Kerkovich tells TVGuide.com. "[Pauley] and I got along great. I think there was sort of a kinship in the fact that we both know we're the characters who bring probably the most levity or quirk to a show like this. So I think there was some unspoken bonding in that regard. ... But on top of that, her character's also going through this emotional thing because her brother's a focal point of the plot. So it wasn't just your typical, 'Oh, I found this microscopic trace on this thing.' It was that, but on top of that it was having to try to comfort her about what was going on."
Check out an exclusive sneak peek of the episode above.
The two-part NCIS-NCIS: New Orleans crossover episode airs Tuesday at 8/7c on CBS.
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