Callen and Sam (Chris O'Donnell and LL Cool J) get most of the attention on NCIS: Los Angeles. But in the season opener September 21, the twosome had better make room.

The second season debut, a two-hour event following the season premiere of NCIS, is basically the “Kensi and Marty Deeks show,” reveals executive producer Shane Brennan.

That would be the crime-solving duo played by Daniela Ruah and past guest star-turned series regular Eric Christian Olsen. EW's Michael Ausiello caught up with the former.

“The banter they are writing for us is hilarious,” Ruah says. “I burst out laughing during table reads. I think our viewers are going to really appreciate the addition [of Eric].”

As for whether there's any sort of love connection between the two, that we're going to have to wait and see on. We're thinking some Tony-Ziva like tension ... and hotness.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.