NCIS: Los Angeles is a drama about the high stakes world of undercover surveillance at the Office of Special Projects (OSP), a division of NCIS that is charged with apprehending dangerous and elusive criminals that pose a threat to the nation’s security. By assuming false identities and utilizing the most advanced technology, this team of highly trained agents goes deep undercover, putting their lives on the line in the field to bring down their targets. Special Agent “G” Callen (Chris O’Donnell) is a chameleon who transforms himself into whomever he needs to be to infiltrate the criminal underworld. His partner is Special Agent Sam Hanna (LL Cool J), a former U.S. Navy SEAL who has seen action in both Afghanistan and Iraq, and a surveillance expert who uses state of the art monitoring equipment to look out for those in the field and feed them crucial information. Both Callen and Hanna report to Henrietta “Hetty” Lange (Linda Hunt) she is the new OSP team leader instead of Special Agent Lara Macy (Louise Lombard) who quit after the backdoor pilot. The OSP team leader responsible for directing the operations and making life-or-death decisions.