Episode:History

is the fifteenth episode, in the fourth season of NCIS: Los Angeles, and the eighty-seventh in the series as a whole excluding the back door pilot episodes and any crossovers. 
==Synopsis==
An OSP investigation leads the team to question a lone survivor of a former terrorist organization, while Kensi and Deeks follow the trail into the woods.
==Cast==
===Series Regulars===
===Other Cast===