NCIS: Los Angeles season 12 episode 8 is coming this weekend on CBS, with the title "Love Kills." Marty Deeks (Eric Christian Olsen) is going to have his own storyline within this episode. He was previously dismissed from his job, but he now has the chance to be an official part of the department.

NCIS: Los Angeles season 12 episode 8 picks up what transpired to Deeks' storyline in episode 7. He will be kicking off his training to be a proper NCIS agent. However, everything won't be easy for him as he's about to face several struggles before becoming a part of the department.

Deeks used to be a liaison, but he was dismissed from his position due to certain reasons. He struggled to cope with losing his job, and there were speculations that he's leaving for good. The good thing is that the series still includes him in the narrative, making him an official agent.

In NCIS: Los Angeles season 12 episode 8, Deeks will be undergoing proper training to prove to the academy that he is fit for the job. But, while his physical skill is one of his strengths, the training isn't going to be what he expected. As shown in the promo, a lot of challenges are waiting for him.

The synopsis also notes that Deeks is struggling with his training to be an official NCIS agent. Even though he knows how to work and function within the field, his position is new. He'll be adjusting to his professional life moving forward.

Right now, it's yet to be seen how long Deeks' training will play out in the latest installment. He may not be involved with case-of-the-week plot until he becomes an official NCIS agent. Once he completes his training, he'll start working alongside other team members.

Meanwhile, a familiar face is coming back in NCIS: Los Angeles season 12 episode 8. Mariela Garriga will be reprising her role as Pietra Rey, someone who hasn't been in the series for quite some time. It's yet to be seen what this character could bring this time around.

According to the synopsis, the team will be investigating the murder of a man who's about to reveal a piece of huge information regarding a massive counterfeiting operation. Then, an old acquaintance showed up and became their prime suspect. The real reason for her return will be revealed.

NCIS: Los Angeles season 12 episode 8 airs on Sunday, January 10, on CBS.