Grissom and his team investigate the murders of three teenagers involved in a rap music rivalry.

The investigation of three teens killed while promoting a rapper's new album leads the CSI team into the world of rival rappers Jessie "Dollar" Cleveland (Kennedy) and Hi-Def (Barker), each of whom will do anything to promote themselves and destroy the other. The CSI's suspect that Dollar's sidekick "Drops" (Method Man), Hi-Def's right-hand woman J-Lady (Moakler), or Marcus, a Las Vegas auto dealer (Gonzalez), may hold the key to solving the case.

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