In this, the third and final part of the CSI crossover, Ray continues his search for Madeline Briggs. The search is interrupted when a local weather girl is found dead outside a hotel with her throat slashed, her purse filled with items suggesting she was involved in prostitution. When examination of the evidence connects her to Madeline, though, the case leads to two different pimps. Who killed the weather girl, and is it too late for Madeline?