Chris O'Donnell and LL Cool J star in this second show in the NCIS franchise, focusing on the high-stakes world of the Office of Special Projects (OSP) in Los Angeles. Highly trained agents use the most advanced technologies available and go undercover to apprehend criminals deemed a threat to national security. Special Agent G. Callum can transform himself into whoever he needs to be to infiltrate criminal factions. His partner, former Navy SEAL Sam Hanna, is a surveillance specialist who uses state-of-the-art equipment to monitor field agents and feed them information.