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CSI and Without a Trace come together in one story, across two episodes. The investigative teams look into the death of a boy in Las Vegas who is linked to an earlier disappearance in New York.
Gil Grissom and Jack Malone work on the case of a dead six-year-old boy who could well be the same boy who went missing six years ago in New York.
Thursday 01 October
10PM, Channel 4