Monday, July 28 at 10.30pm

Greg Sanders is taking his field proficiency test on a nightclub shooting,with Grissom judging his work; Nick and Sara investigate an alien body found in a shallow grave in Area 51; Warrick walks a mile in a dead man’s shoes to figure out why he committed suicide; and Catherine investigates the bloody murder of a stripper who died in bed with a tourist who doesn’t remember a thing.