DEA Agent Talia Del Campo is ready to make her return to NCIS: Los Angeles.

Unseen since the season 6 premiere, Mercedes Mason's kickbutt agent will team up with the Office of Special Projects once more in "Citadel."

Eric Christian Olsen (Deeks) and Mason posted a series of behind-the-scenes photos to announce Del Campo's return on Wednesday.

Dear @ericcolsen, You amuse me. To no end. Umm...what is happening in this photo?? #NCISLAseason7 A photo posted by Mercedes Mason (@themercedesmason) on Aug 5, 2015 at 3:18pm PDT

Filming as episode 702 (airing order unconfirmed), the Dave Kalstein script is primed to produce a major "game changing" moment. It is unknown if Del Campo is involved in this twist, but it's safe to say viewers won't have to worry about her trying to sink the Densi 'ship. After the event of 'Deep Trouble: Part 2,' Kensi (Daniela Ruah) and Talia have settled their differences.

Do you think Talia will have a role to play in whatever surprise the NCIS: LA writers are cooking up for this fall? Sound of in the comments below!

NCIS: LA will return to CBS on Sept. 21 at 10 p.m. ET with "Active Measures."

Tags: NCIS: LA NCIS: Los Angeles television CBS