'CSI: Vegas' Goes Back to Where It All Began in Official Trailer: Watch (Exclusive)
, features the return of original stars William Petersen and Jorja Fox, who reprise their roles as Gil Grissom and Sara Sidle, respectively.In the full official trailer, premiering exclusively on ET (watch above), the squad's legacy is called into question when new developments surface about the Crime Lab that jeopardize the years and years of work they did. The possibility of criminal malfeasance reunites the forensics investigators as they «follow the truth.»«Welcome to 2021,» says Maxine Roby (Paula Newsome), head of the CSI Crime Lab.