A DEAF ENGINEER WHO'S THE ONLY MEMBER OF HER TEAM TO SURVIVE THE THEFT OF MILITARY GRADE TECHNOLOGY, HELPS KENSI AND NCIS TRACK DOWN THE TECH BEFORE IT'S TAKEN OUT OF THE U.S., ON "NCIS: LOS ANGELES," SUNDAY, MAY 9

"Signs of Change" - When military grade technology is stolen, a deaf engineer, Sienna Marchione (Raquel McPeek Rodriguez)
, who always wanted to serve her country, and the only member of her team to survive the theft, helps Kensi and NCIS track down the tech before it's taken out of the country, on NCIS: LOS ANGELES, Sunday, May 9 (9:00-10:00 PM, ET/PT) on the CBS Television Network.

REGULAR CAST:

Chris O'Donnell (Special Agent G. Callen)
LL COOL J (Special Agent Sam Hanna)
Linda Hunt (Operations Manager Henrietta "Hetty" Lange)
Daniela Ruah (Special Agent Kensi Blye)
Eric Christian Olsen (Investigator Marty Deeks)
Barrett Foa (Tech Consultant Eric Beale)
Renée Felice Smith (Intelligence Analyst Nell Jones)
Medalion Rahimi (Special Agent Fatima Namazi)
Caleb Castille (Special Agent Devin Rountree)

GUEST CAST:

Gerald McRaney (Retired Navy Admiral Hollace Kilbride)
Raquel McPeek Rodriguez (Sienna Marchione)
Matt Bush (Owen Winnick)
Mo Sehgal (Randall/Man #1)
Maurizio Rasti (Ehsan Rahman)
Abraham Justice (Carl/Driver)
Duncan Campbell (NCIS Special Agent Castor)

WRITTEN BY: Indira Gibson Wilson and Jordana Lewis Jaffe

DIRECTED BY: Dennis Smith