Det. Mac Taylor (Gary Sinise, right) and the team, including Det. Don Flack (Eddie Cahill, left), partner with Las Vegas CSI D.B. Russell (center) to outsmart Christine’s kidnappers before they run out of time to save her life, in the second part of a two-part crossover. Photo: Cliff Lipson/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.