"In Vino Veritas" — When CSI Mac Taylor decides to surprise his girlfriend in Vegas, he discovers she's missing, and asks his friend D.B. Russell for help. Meanwhile, the CSIs investigate the loss of a local wine collector on part one of a two-part crossover with "CSI: NY," on "CSI: Crime Scene Investigation," Wednesday, Feb. 6 (10 p.m.) on the CBS Television Network. Gary Sinise ("CSI: NY") guest stars as Mac Taylor.
"Seth and Apep" - Mac and the team partner with D.B. Russell to outsmart Christine's kidnappers before they run out of time to save her life, in the second part of a two-part crossover, on "CSI: NY," Friday, Feb. 8 (9 p.m.), on CBS. Ted Danson ("CSI:") guest stars as CSI D.B. Russell. Navid Negahban ("Homeland") guest stars as Zane Kalim, a criminal with information about Christine's whereabouts.