Timothy Carhart makes his first series appearance as Eddie, the ex-husband of CSI member Catherine Willows (Marg Helgenberger). When Eddie is accused of rape, Catherine risks losing her job by conducting her own investigation. Elsewhere, a cop accused of murder may or may not be exonerated by a missing bullet, and the skeleton of an unidentified female is found encased in cement under a house. ~ Hal Erickson, Rovi