NCIS: Los Angeles season 7 has entered the home stretch.

CBS released the title for episode 21 on Tuesday, which makes the final run of episodes as follows:

Episode 20: "Seoul Man"

Episode 21: "Head of the Snake"

Episode 22: "Granger, O"

Episode 23: "Where There's Smoke"

Episode 24: "Talion" (Finale)

Some sites erroneously reported the episode 21 title as "Where There's Smoke" due to that title's production number. Filmed in early March, "Where There's Smoke" shot as episode 721, but as with all episodes filmed for the current season, the air order is actually advanced by two. This is because the series filmed season 7's "Deep Trouble: Part 2" and "SEAL Hunter" last spring as episodes 623 and 624.

Next time on NCIS: LA, the team will take to social media as they hunt for a North Korean spy in "Seoul Man." After Granger (Miguel Ferrer) revealed a connection to South Korean spy Jennifer Kim (Malese Jow) at Christmas, we've been waiting for the subject to come up once more. From the sounds of it, NCIS: LA will dive back into Granger's past in either episode 20 or episode 22.

"Granger has always been shrouded in a little mystery. We'd talked about exploring his past, kicking around this idea that he spent time in South East Asia," executive producer R. Scott Gemmell told TV Insider. "Cancel Christmas" left fans wondering "why he would take such a personal interest in what just seems like a routine suspect. That's a hint that there is more there than what meets the eye."

Are you excited to peel back the layers on the OSP's mysterious assistant director? Find out more when NCIS: LA airs Mondays at 10 p.m. ET on CBS. Click the video below to see a preview for the series' next episode.