Chad Morgan

After collecting the evidence to a crime scene involving a murdered undercover ATF agent, Calleigh is run off the road into a canal, corrupting her evidence. Since almost none of the evidence is salvageable, the CSIs must work to uncover new, untouched evidence in order to solve the case. Meanwhile, Calleigh's ex-boyfriend, also an undercover ATF agent, offers conflicting insight into the investigation.

A peeping Tom escalates his behavior to breaking and entering and then rape, leaving the team racing the clock to find him before he strikes again.

The team must find out if one team’s fun led to murder in the New York version of the Iditarod.The CSI must find who or what may have caused a rich man to be alone in his apartment.