CSI: Crime Scene Investigation

The Lost Girls (3) (10x7)

Air date: Nov 12, 2009

(Crossover episode with CSI: Miami, Season 8 Episode 7 and CSI: New York, Season 6 Episode 7.) In the third and final part of the CSI crossover, the CSI team helps Langston investigate a prostitution ring that may have harbored a hostage Langston has been looking for in Miami and New York.