The Lost Girls (CSI: Crime Scene Investigation) The Lost Girls (CSI: Crime Scene Investigation) "The Lost Girls" is the seventh episode of season 10 of "". It is also the final part of a crossover trilogy that links all three CSIs together for the first time; the trilogy began on "" with "Bone Voyage" and continued on "" with "Hammer Down". It features Laurence Fishburne as Dr. Ray Langston, who trails the case of a missing girl from Miami to New York and back to his home town of Las Vegas. Dr. Ray Langston is back in Las Vegas and still searching for Madeline Briggs after trying
Pilot (CSI: Crime Scene Investigation) mold of his own hand. Grissom realizes that the suspect used one of these hands. Nick Stokes arrives at his crime scene and meets a man who was drugged by a hooker and had his possessions stolen while he was unconscious. Nick notices a discoloration around the man's mouth that he thereafter ties up with another caseload, Kristy Hopkins, who accidentally crashes her car when she got knocked unconscious while driving. He notices the same discoloration around her nipples and realizes that she put scopolamine on her nipples to knock out her victims and steal their possessions. Catherine and Warrick