The CSI's offices have relocated to a Manhattan high rise which includes new labs, a staff break room and new office equipment with state-of-the-art technology. Also, after expressing his interest in moving out of the coroner's office, Dr. Hawkes joins the team in the field and his first case has him working with Mac on the death of a skyscraper climber. Although hundreds of witnesses were on hand to see the climber fall, the team suspects foul play and believes someone may have caused his death. Meanwhile, Stella and Danny investigate the murder of a New York fashion designer killed while wearing an eight million dollar diamond bar from his own collection.