Synopsis by Hal Erickson
Several Southwestern police departments -- 20,000 members strong -- converge in Nevada to compete in a desert relay race. With victory in their grasp, contestants Grissom (William L. Petersen), Catherine (Marg Helgenberger), and Nick (George Eads) come upon a body lying on the side of a road. It turns out that the victim was another runner, a Los Angeles police officer. And back in Vegas, Sara (Jorja Fox) and Warrick (Gary Dourdan) investigate an apparent murder-suicide -- and this time, both of the victims were cops.