First Look: High Tech, High Stakes On NCIS: Los Angeles

Eric Christian Olsen as Marty Deeks and Daniela Ruah as Kensi Blye

Eric Christian Olsen as Marty Deeks and Daniela Ruah as Kensi Blye

The team investigates the murder of tech entrepreneur turned venture capitalist who secretly developed a daemon, a background computer program that allows for undetectable data collection, on "Angels & Daemons.”
 Daniela Ruah as Kensi Blye and Eric Christian Olsen as Marty Deeks

Daniela Ruah as Kensi Blye and Eric Christian Olsen as Marty Deeks

"Angels & Daemons” (Episode 13, Season 7 of NCIS: Los Angeles)
Eric Christian Olsen as Marty Deeks

Eric Christian Olsen as Marty Deeks

"Angels & Daemons” (Episode 13, Season 7 of NCIS: Los Angeles)
LL COOL J as Sam Hanna

LL COOL J as Sam Hanna

"Angels & Daemons” (Episode 13, Season 7 of NCIS: Los Angeles)
Chris O'Donnell as G. Callen

Chris O'Donnell as G. Callen

"Angels & Daemons” (Episode 13, Season 7 of NCIS: Los Angeles)
LL COOL J as Sam Hanna and Chris O'Donnell as G. Callen

LL COOL J as Sam Hanna and Chris O'Donnell as G. Callen

"Angels & Daemons” (Episode 13, Season 7 of NCIS: Los Angeles)
LL COOL J as Sam Hanna

LL COOL J as Sam Hanna

"Angels & Daemons”(Episode 13, Season 7 of NCIS: Los Angeles)
Chris O'Donnell as G. Callen

Chris O'Donnell as G. Callen

"Angels & Daemons”(Episode 13, Season 7 of NCIS: Los Angeles)