CSI: NY — Episode 7: Manhattan Manhunt (II)

You are watching the episode Manhattan Manhunt (II) Horatio Caine follows Henry Darius to New York so that he can keep his promise to a young boy in Miami, but by the time he and Mac are able to locate Darius he has disappeared again, leaving behind six more bodies.

The crossover starts on CSI: Miami S04E07 Felony Flight (I).