The upcoming episode of "NCIS: Los Angeles" is airing on Sunday, and the synopsis teases a fun episode, especially two main characters are going to go on an undercover mission to catch a rather techie couple.

The previous episode of "NCIS: Los Angeles" Season 8 showed someone tailing Asakeem, which could mean another villain for the show. The upcoming episode is expected to shed light on that as well.

All the while, we thought that Shawn Wilson (Devon Michaels) was the real culprit, but the episode had a surprising twist when it was discovered that LA District Attorney Frank Gibson (Bruce Thomas) is Zeus, and Sam made the arrest.

Episode 18 of "NCIS: Los Angeles" Season 8, titled "Getaway" will show Eric Beale (Barrett Foa) and Nell Jones (Renee Felice Smith) literally on a getaway at a couple's retreat to catch two vicious hackers, 2paragraphs said.

The suspects are linked to the hacking of the US Treasury Department, which hints that these criminals are big time. Now, since Nell and Eric will be out, someone will fill in. Digital forensics specialist Dave Flynn (Scott Grimes) will come to the San Diego office from NCIS to run operations. A teaser released for this episode did not reveal what the rest of the team will be up to, specifically.

According to Gosh! TV, Nell and Eric won't have a hard time convincing the other couples in the retreat that they are indeed a real couple. It will be fun to watch if Nell and Eric will be able to convince the other couples on the retreat.

The previous episode of "NCIS: Los Angeles" Season 8 showed someone tailing Asakeem which could mean that there is another villain in the show. The upcoming episode is expected to shed light on that as well. "NCIS: Los Angeles" airs Sundays at 8pm on CBS.