First part of the “CSI Trilogy” (second on CSI: NY and third on CSI). After a freaked out woman enters the CSI’s lab screaming and crying that her daughter has gone missing, Horatio puts himself and his team on the case. At the crime scene, Calleigh finds evidence of a violent abduction and every team member talk to the different people the girl talked to before she got lost. However, when the CSIs get their first real lead, it all connects to a very similar case in Las Vegas, resulting in Ray Langston (from CSI) to come to Miami to help them investigate.