The third season of NCIS: Los Angeles an American police procedural drama television series, originally aired on CBS from September 20, 2011 to May 15, 2012. The season was produced by Shane Brennan Productions and CBS Television Studios, with Shane Brennan as showrunner and executive producer. A total of 24 episodes were produced. A fictional crossover with Hawaii Five-0 occurred during the season in episode twenty-one. The season introduces Miguel Ferrer as NCIS Assistant Director Owen Granger.