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
CSI: Crime Scene Investigation by Frame"). "CSI" spawned three spin-off series, a book series, several video games, and an exhibit at Chicago's Museum of Science and Industry. At the time of its cancellation, "CSI" was the seventh-longest running scripted U.S. primetime TV series overall and had been recognized as the most popular dramatic series internationally by the Festival de Télévision de Monte-Carlo, which awarded the series the International Television Audience Award (Best Television Drama Series) three times. "CSI" became the second-most watched show on American television by 2002, finally taking the top position for the 2002-2003 season. It was later named the most-watched show