The press box at a small high-school football field yields the strangled body of Nebraska woman Alison Carpenter. The CSI's investigation reveals that Alison died an hour before her corpse was found, and that she may have perished during a session of rough consensual sex. Among the suspects are meth addict Jason Kent (Max Martini) and a pair of ex-convicts (Luis Antonio Ramos and Raymond Cruz) who were in the same street gang. On a more personal note, the entire CSI team works overtime to find out the source of an explosion in their own DNA lab, in which a technician was badly injured. ~ Hal Erickson, Rovi