The death of a first-class passenger on a flight to Las Vegas has Grissom and his team scrambling to examine the physical evidence and get testimony from the other passengers.
Denny discovers that son is the lawyer trying to stop one of the firm's major clients developing on a natural resource site. Alan thinks his unhinged ex-girlfriend might be stalking him.
Alan again defends Denny, who has been arrested for illegally shipping human fat out of the country; Clarence tries his first case, a homicide, with Bethany and Paul's help; a member of the firm bids farewell.
Weaver introduces Greene to Dr Gabriel Lawrence, a physician reputed to be a founding father of emergency medicine, but Greene immediately dislikes him and they argue about ordering a test for a patient.
A man, found stabbed in an alley, turns out to be Nicholas, the vagrant who was being protected at the station.