Synopsis by Hal Erickson
The CSI team investigates when a young coed, about to move back home, disappears without a trace from her campus dorm room. Even more curious, all of the girl's belongings were left behind. This and other baffling clues lead the crew to conclude that the case's solution may lie in the Chaos Theory, wherein seemingly harmless and unimportant events culminate in disaster. Originally scheduled to air on September 27, 2001, this episode was moved back one week due to network coverage of the 9/11 tragedy.