Manley Pope

When a doorman at a New York City hotspot is murdered, Danny returns to investigate the nightclub scene he left behind years ago. Meanwhile, Frank makes a decision about an ex-partner's future.

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. (TV_PG)