[s10e7] The Lost Girls | Essential – 2026 |

This guide covers which is the seventh episode of the tenth season of CSI: Crime Scene Investigation . This episode is most notable for being the final part of a major three-show crossover event known as the CSI: Trilogy . Episode Overview Original Air Date: November 12, 2009.

The murder provides a vital clue that leads Langston back to Madeline, whom he has tracked from Miami to New York and finally back to Las Vegas. [S10E7] The Lost Girls

The episode is available for streaming on platforms like Paramount+ and Apple TV . This guide covers which is the seventh episode

To get the full story, you should watch the episodes in this sequence: CSI: Miami (S08E07) – "Bone Voyage". CSI: NY (S06E07) – "Hammer Down". [S10E7] The Lost Girls