Season 1, Episode 12 Past Lives
First Aired: January 12, 2010
Callen goes undercover as an old alias from his past to investigate the murder of a recently released convict.
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- Premiered: September 22, 2009
- Rating: TV-14
- Premise: An "NCIS" spin-off following the undercover agents of the NCIS Office of Special Projects, working from a Spanish mission headquarters in Los Angeles. (more)