'NCIS: LA' preview: Eric Christian Olsen and boss tease big 'reveal' in two-part episode 'NCIS: LA' boss on the season finale and the explosion that could spell disaster for the team -- EXCLUSIVE ...

The NCIS franchise is expanding exponentially. You’d think it would run out of stories after over 20 years on the air. But despite NCIS: Hawai’i, NCIS: Los Angeles, and NCIS: New Orleans ...