The bodies of two girls are found stuffed in pipes at a rural highway construction site. Investigating, Grissom (William L. Petersen) and Sara (Jorja Fox) determine that the girls were sisters, and that one of them was intimate with a recently paroled convict. Elsewhere, another body found in the woods seems to have been the victim of a hunting accident, but Catherine (Marg Helgenberger) and Nick (George Eads) have their doubts. ~ Hal Erickson, Rovi