When CBS' powerhouse Tuesday night lineup returns January 11, NCIS: Los Angeles will bring a heavy dose of its usual formula - mystery, danger and suspense.

Sandwiched between TV's top show in NCIS and a critically acclaimed drama in The Good Wife, LL Cool J, Chris O'Donnell & Co. have flown under the radar a bit.

Fans of the second-year hit know that it's really come into its own, however. The cast continues to jell and the story lines have become more distinctly complex.

This newly-released promo doesn't reveal any upcoming scenes, but serves as a highlight reel of sorts from first half of the season, priming us for 2011 ...

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