NCIS: Los Angeles' Kensi Blye and Talia Del Campo will throw a few punches in the season 6 premiere, but they won't be aiming for the bad guys.

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Kensi (Daniela Ruah) and Talia (Mercedes Masohn) will get into a heated debate over Deeks, and their confrontation will quickly turn physical (see video below).

"When Kensi doesn't know what to say, she throws a punch, or a head butt in this case," Ruah joked in a NCIS: LA featurette.

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Talia's insinuation that Kensi and Deeks need to speed up the sexual side of the Densi relationship will kick off the pair's battle. Kensi isn't looking for any unsolicited advice, and when Talia threatens to break her nose, the agent will jump into action.

"Two characters who are obviously very strong women," Ruah explained. "Kensi's attracted to Deeks, Talia might also be attracted to him but also sees that this is sensitive ground and uses that to sort of prod and annoy Kensi and bring up subject matter that Kensi does not want to talk about, much less with her."

Find out more when NCIS: LA returns to CBS on Sept. 29 at 10 p.m. ET with "Deep Trouble: Part 2."