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 occasion, been accompanied by Electric Light Orchestra's "Mr. Blue Sky". This song was first used in the season-seven episode "Lab Rats", and last used during season 10's "Field Mice". From "CSI", CBS produced a franchise starting in 2002 with a spin-off entitled "". Set in Miami, Florida, and starring David Caruso and Emily Procter, "Miami" later launched "" in 2004. Starring Gary Sinise, Sela Ward, and Melina Kanakaredes, "NY" was set in New York City and was based upon the idea that "Everything is Connected". In 2015, a fourth "CSI" series, entitled "", starring Patricia Arquette and Ted Danson, was