Description by couchtuner for NCIS: Los Angeles Season 3 Episode 12 : When a researcher with the Department of Defense is found dead, Nell must put her high IQ to the test when she goes undercover as his replacement. Meanwhile, Hetty’s ability to lead the team is questioned by the new NCIS Assistant Director, Owen Granger.
Watch It Here : NCIS: Los Angeles Season 3 Episode 12 The Watchers