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CSI
Thursday 9:00 PM on CBS

Episode Score

 
9.0 Superb
249 votes

Your Score

Air Date

Thursday October 4, 2001

Production Code

202

Episode Summary

The entire CSI team investigates a disappearance at a local university. A young woman vanished, seemingly off the face of the earth. Forensics leads them to possible suspects, and possible suspects all have probable motives, but nothing seems to pan out. This leads our team to discuss the "Chaos Theory." When combined, many seemingly-innocuous events may have a deadly outcome. And closure is not always within reach.

Read Full Recap » (warning: possible spoilers!)
  •  
    10 Perfect

    the team investigates the disappearance of a college student that leads them down many paths and with the girl's dead body in the dumpster hide show

    i was surprised they didnt open the ep w/ that..i mean seeing her in the dumpster would have added more suspense to the ep w/ the how and why that they were asking..but i think they did a really good job w/ building the suspense the way they did it..spoiler..they were focusing their attention on the missing girl and found something else along the way and got someone else arrested for date rape on another case w/ the girls roommate..the disappointing factor was all the dead ends they hit..but i was so relieved and the suspense built up and was finally relieved when it was all an accident..yay!

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  •  
    8.1 Great

    A college co-ed disappears as she is leaving college, for what appears to be for good. hide show

    I thoroughly enjoyed the twists and turns this particular episode took, as well as the banter between the characters and the clever "historic scientific" references, if you will. Despite the sad truth of what you ultimitely discover actually happened to the girl, I think the writers attempted to try and make the whole episode a little less dark by interjecting the sarcastic comments.

    For me, I think the most heart-breaking thing about this episode was not just the tragic circumstances under which the girl dies, but that a completely innocent man's life was probably ruined due to a completely random event.

    It also brings to mind a scary thought; that perhaps we are not in control of our lives to any extent, and that our freedom of choice is a complete illusion. If that's the case, is it at all possible that everything happens for a reason? Makes you wonder.....

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  •  
    9 Superb

    The disappearance of a college student leads the team down several different routes, none of which seem to lead anywhere. hide show

    It's a very clever story that seems to be about more than it is. When a girl goes missing, there is no shortage of evidence, but none of it seems to lead anywhere. The more they examine the different evidence, the more the team is flummoxed. Even when they have suspects, they can't quite build a case.

    I liked this episode, because it builds up an atmosphere of menace and you know something horrible might have happened to her. The clever part is that the ending is much more pedestrian and tragic than anything that was set up by the story. You can almost see how the writers would have started at the end and worked backwards.

    Oh, and just what on earth has happened to Greg's hair in this episode?

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  •  
    9.8 Superb

    Excellent example of the team working as a team. hide show

    This episode centers on the mysterious disappearance of a college student and the whole team works the case. After many theories and the discovery of an actual crime (date rape) the case is solved. The poor girl died due to being in the wrong place at the wrong time. No crime was actually committed. The scene at the end when her parents are told the cause of death is sad. They wanted closure but the closure they received was not enough to comfort or satisfy them. We are left with a perplexed Grissom not understanding this.

    Overall it is a wonderful team episode. All of the characters work together in some capacity throughout. There are great humorous moments interspersed over the episode. From Catherine in the “Bob the Builder” outfit going down the chute to Sara explaining the benefits of putting toothpaste into nail holes in the wall (anyone who has not gone to college seriously needs to pay attention to this because your place will be trashed and you need every bit of help you can find to get that deposit back, trust me). And the two scenes with all of them standing at the dumpsters are absolutely wonderful. Great teamwork guys.

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  •  
    9 Superb

    A female college student has decided to drop out and head home. Just as a cab arrives to take her to the airport, she disappears. Grissom and his team try to find what happened to the student, but they run into one dead end after another. hide show

    The December 7, 2009 issue of "Entertainment Weekly" magazine named this episode as one of the best television episodes of the decade. I agree. "Chaos Theory" is one of the best episodes of the second season. The episode keeps you guessing throughout which is one of the things I like about "CSI" as well as its' spin-offs. Just about everything, the flashbacks, the through investigation of the disappearance of young Paige to the surprising conclusion, works perfectly here. I can't say much for fear of giving too much away, but "Chaos Theory" is definitely an episode of "CSI" worth seeing.

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Episode Cast and Crew

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  • Grissom mentions the title of the episode "Chaos Theory" in the episode. []
  • Music
    Hey Baby- Morcean Worker
    The Four Seasons: Summer, Presto- Antionio Vivaldi
    Inhaler - Hooverphonic.
    Glory Box - Portishead. []
  • Archie Kao (Campus Security Technician) would later join the cast in a recurring role as Archie Johnson in later episode "Caged." []
  • Grissom: You know, when a tree falls in the forest, even if no one's there to hear it, it does, in fact, make a sound. []
  • (Sara taking mouth swabs from suspect)
    Sara: Are you refusing?
    Suspect: Uh.. I haven't brushed my teeth.
    Warrick: Hey mouth boy, she's not gonna kiss you, she just wants your DNA okay? []
  • Grissom: Frederick Miescher requests my presence?
    Greg: Figured out my code huh? Well you know my boy, Freddie, discovered DNA.
    Grissom: He's been dead a hundred years, Greg. []
More Quotes

Allusions

  • Grissom: There's an easy solution to every human problem, neat, plausible, and wrong.

    Henry Louis Mencken (1880-1956), was an American journalist, essayist, magazine editor, satirist, acerbic critic of American life and culture, and a student of American English and the exact words are: "There is always an easy solution to every human problem-neat, plausible, and wrong". This essay was originally published in the New York Evening Mail, November 16, 1917, and reprinted in Prejudices: Second Series (1920). []
  • Warrick: Nice try Nostradamus

    Warrick is teasing Nick for his attempt to predict the future. Nostradamus (born Michel de Nostredame in 1503) was a French healer and seer, who famously published a number of prophecies, many of which are supposed to have come true (though the links between prophecy and reality are often tenuous at best). Despite the fact he first published his prophecies between 1555 and 1568, they are still in print today and many people still believe he was able to predict major world events. []
  • Episode Title: Chaos Theory

    The title of this episode refers to the now well known idea that the tiniest difference in the starting point of a situation can lead to huge differences in the outcome. []
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