TV O'Donnell & Cool J Return to Explosive 'NCIS:LA' Published 4:00 AM PDT, September 30, 2013 NCIS: Los Angeles came back swinging for its fifth season debut, and the show has a fun, action-packed season ahead!Series leads Chris O'Donnell and LL Cool J are back, solving crime, fighting bad guys and looking good doing it. And they have the whole gang there, backing them up! PICS: 10 Most Promising New Fall TV Shows NCIS: Los Angeles, a spinoff of CBS's number one show in America NCIS, is itself a rating powerhouse, bringing in tens of millions of viewers weekly, and rapidly rising in the ratings race. Check out these Season 5 clips for more from the upcoming episodes! NCIS: Los Angeles airs Tuesdays at 9/8c on CBS.