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The Worst Episodes of CSI: Crime Scene Investigation

Every episode of CSI: Crime Scene Investigation ranked from worst to best. Explore the Worst Episodes of CSI: Crime Scene Investigation!

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A Las Vegas team of forensic investigators are trained to solve criminal cases by scouring the crime scene, collecting irrefutable evidence and finding the missing pieces that solve the mystery.

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Episode Rankings

  1. #1 Worst Episode
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    CSI: Crime Scene Investigation Season 11 Episode 3 - Blood Moon
    6.0/10(758 votes)

    #1 - Blood Moon

    S11:E3

    A vampire and werewolf convention becomes the center of a murder investigation.

    Director:Brad Tanenbaum
    Writers:Treena Hancock, Melissa R. Byer

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  2. CSI: Crime Scene Investigation Season 10 Episode 16 - The Panty Sniffer
    6.2/10(722 votes)

    #2 - The Panty Sniffer

    S10:E16

    Catherine and Detective Vartann are thrown together in a hotel room for 24 hours as they stake out a duo making drugs in the room next door. Meanwhile, Nick and Langston work a case that involves a fetish which has become big business in Vegas.

    Director:Louis Shaw Milito
    Writer:Unknown

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  3. CSI: Crime Scene Investigation Season 12 Episode 17 - Trends with Benefits
    6.2/10(715 votes)

    #3 - Trends with Benefits

    S12:E17

    When a photo of a dead college student starts trending on the Internet, the team steps in to investigate.

    Director:Louis Shaw Milito
    Writer:Jack Gutowitz

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  4. CSI: Crime Scene Investigation Season 15 Episode 8 - Rubbery Homicide
    6.2/10(440 votes)

    #4 - Rubbery Homicide

    S15:E8

    The CSI team find themselves taking a look into the kinky world of “rubber dolls” as they investigate the murder of a man stabbed in an alley.

    Director:Louis Shaw Milito
    Writer:Tom Mularz

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  5. CSI: Crime Scene Investigation Season 5 Episode 5 - Swap Meet
    6.3/10(871 votes)

    #5 - Swap Meet

    S5:E5

    Grissom and Sara investigate the murder of a woman after a swap party. The married couples in the neighborhood meet and switch partners. With the help of a crime scene cleaner, Nick and Warrick find there was more to their crime scene than they first thought. Catherine wants a promotion to day shift supervisor.

    Director:Danny Cannon
    Writers:David Rambo, Carol Mendelsohn, Naren Shankar

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  6. CSI: Crime Scene Investigation Season 13 Episode 6 - Pick and Roll
    6.3/10(531 votes)

    #6 - Pick and Roll

    S13:E6

    Things get personal when D.B. Russell is drawn into the investigation of the death of his son's basketball coach.

    Director:Alec Smight
    Writer:Rick Eid

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  7. CSI: Crime Scene Investigation Season 13 Episode 18 - Sheltered
    6.3/10(478 votes)

    #7 - Sheltered

    S13:E18

    When the CSIs find a body near a forest reserve, they discover what might be a serial killer and his bizarre lair.

    Director:Louis Shaw Milito
    Writer:Michael F.X. Daley

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  8. CSI: Crime Scene Investigation Season 9 Episode 5 - Leave out All the Rest
    6.4/10(840 votes)

    #8 - Leave out All the Rest

    S9:E5

    Grissom asks Lady Heather for help when the team investigates a case connected to the world of domination.

    Director:Kenneth Fink
    Writer:Jacqueline Hoyt

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  9. CSI: Crime Scene Investigation Season 15 Episode 6 - The Twin Paradox
    6.4/10(457 votes)

    #9 - The Twin Paradox

    S15:E6

    Frustration mounts for the CSI team as another victim surfaces who is linked to the Gig Harbor Killer.

    Director:Philip Conserva
    Writer:Christopher Barbour

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  10. CSI: Crime Scene Investigation Season 15 Episode 11 - Angle of Attack
    6.4/10(446 votes)

    #10 - Angle of Attack

    S15:E11

    The CSIs' investigation of the victim of an apparent hit and run leads them into the world of aeronautics.

    Director:Kevin Bray
    Writer:M. Scott Veach

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  11. CSI: Crime Scene Investigation Season 1 Episode 18 - $35K O.B.O.
    6.5/10(1009 votes)

    #11 - $35K O.B.O.

    S1:E18

    A couple leaving a restaurant on their anniversary are killed in the street and their car is stolen. The crime scene is compromised when it rains shortly after the CSIs arrive. It gets more mysterious when the car is found and it becomes a new crime scene. Catherine looks into the collapse of a city owned residence that kills three elderly women. She runs into problems with the city engineer responsible for the building.

    Director:Roy H. Wagner
    Writer:Eli Talbert

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  12. CSI: Crime Scene Investigation Season 4 Episode 1 - Assume Nothing (1)
    6.5/10(941 votes)

    #12 - Assume Nothing (1)

    S4:E1

    Two couples meet in a bar and one of the couples is murdered. When a second couple is murdered in a similar fashion the team suspects a pair of serial killers are on the loose. The case is complicated by leaks to the press and a judge reluctant to issue a warrant. Catherine gets some troubling news about her father's murder trial.

    Director:Richard J. Lewis
    Writers:Anthony E. Zuiker, Danny Cannon

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  13. CSI: Crime Scene Investigation Season 9 Episode 2 - The Happy Place
    6.5/10(819 votes)

    #13 - The Happy Place

    S9:E2

    A hypnotist bank robber becomes the prime suspect in a murder investigation.

    Director:Nathan Hope
    Writer:Sarah Goldfinger

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  14. CSI: Crime Scene Investigation Season 12 Episode 19 - Split Decisions
    6.5/10(723 votes)

    #14 - Split Decisions

    S12:E19

    When the CSI team is called in to investigate a man who is shot at point-blank range in a local casino, they shut down the entire building to find their killer.

    Director:Brad Tanenbaum
    Writers:Michael F.X. Daley, Richard Catalani

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  15. CSI: Crime Scene Investigation Season 13 Episode 5 - Play Dead
    6.5/10(612 votes)

    #15 - Play Dead

    S13:E5

    When a K-9 is blamed for the death of his partner, the CSI team discovers there's more to the case. Meanwhile, Finlay and Morgan investigate the death of a high-profile divorce lawyer with a lot of enemies.

    Director:Eagle Egilsson
    Writers:Treena Hancock, Melissa R. Byer

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  16. CSI: Crime Scene Investigation Season 13 Episode 19 - Backfire
    6.5/10(478 votes)

    #16 - Backfire

    S13:E19

    When the CSIs investigate a triple homicide, Russell has to find a way to connect with a 6-year-old girl who was the sole survivor and witness.

    Director:Unknown
    Writer:Jack Gutowitz

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  17. CSI: Crime Scene Investigation Season 14 Episode 15 - Love for Sale
    6.5/10(476 votes)

    #17 - Love for Sale

    S14:E15

    Greg and Nick investigate the death of a 16-year-old girl with ties to a brothel.

    Director:Unknown
    Writer:Andrew Dettmann

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  18. CSI: Crime Scene Investigation Season 15 Episode 18 - The End Game
    6.5/10(531 votes)

    #18 - The End Game

    S15:E18

    The CSI unit faces the final showdown with the Gig Harbor killer whose motives are finally revealed. Meanwhile, Nick Stokes makes a decision that will affect the entire team moving forward.

    Director:Alec Smight
    Writer:Christopher Barbour

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  19. CSI: Crime Scene Investigation Season 1 Episode 10 - Sex, Lies and Larvae
    6.6/10(1106 votes)

    #19 - Sex, Lies and Larvae

    S1:E10

    Grissom and Sara investigate a bug riddled body found in the desert. Warrick and Catherine look in to the theft of some valuable art. Nick gets to find out why a missing woman's car is found at the bus station. Warrick is suspected of having gambled on duty.

    Director:Thomas J. Wright
    Writers:Ann Donahue, Josh Berman

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  20. CSI: Crime Scene Investigation Season 7 Episode 14 - Meet Market
    6.6/10(808 votes)

    #20 - Meet Market

    S7:E14

    Nick and Keppler investigate the bizarre world of the black market sales of body parts after they find a body that has been burned and the organs removed. The rest of the CSI team investigates the death of rich woman who was killed in her own home.

    Director:Paris Barclay
    Writer:Dustin Lee Abraham

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  21. CSI: Crime Scene Investigation Season 9 Episode 14 - Miscarriage of Justice
    6.6/10(742 votes)

    #21 - Miscarriage of Justice

    S9:E14

    While Langston testifies in the trial of a respected Congressman, new evidence sends the CSIs back to the lab to reopen the investigation.

    Director:Louis Shaw Milito
    Writers:Richard Catalani, Jacqueline Hoyt

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  22. CSI: Crime Scene Investigation Season 10 Episode 6 - Death and the Maiden
    6.6/10(763 votes)

    #22 - Death and the Maiden

    S10:E6

    When two seemingly different crimes turn out to be related, the CSIs discover they're interlocking parts of the same revenge plot.

    Director:Brad Tanenbaum
    Writer:Jacqueline Hoyt

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  23. CSI: Crime Scene Investigation Season 10 Episode 8 - Lover's Lanes
    6.6/10(714 votes)

    #23 - Lover's Lanes

    S10:E8

    A bowling tournament is disrupted when an important piece of evidence is uncovered, leading the CSIs to investigate a murder at the same bowling alley.

    Director:Andrew Bernstein
    Writer:Dustin Lee Abraham

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  24. CSI: Crime Scene Investigation Season 12 Episode 15 - Stealing Home
    6.6/10(742 votes)

    #24 - Stealing Home

    S12:E15

    When a house is stolen completely off its foundation, the CSIs are on the case in search of answers. Meanwhile, new CSI Julie Finlay showcases her skill in blood analysis.

    Director:Alec Smight
    Writers:Treena Hancock, Melissa R. Byer

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  25. CSI: Crime Scene Investigation Season 13 Episode 9 - Strip Maul
    6.6/10(516 votes)

    #25 - Strip Maul

    S13:E9

    The CSI team lends a hand to local law enforcement on the strip with several arrests until a John Doe is found in car. Also, things become personal for Captain Brass when he discovers some facts about his daughter.

    Director:Alec Smight
    Writer:Christopher Barbour

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Worst Episodes Summary

"Blood Moon" is the worst rated episode of "CSI: Crime Scene Investigation". It scored 6/10 based on 758 votes. Directed by Brad Tanenbaum and written by Treena Hancock, Melissa R. Byer, it aired on 10/7/2010. This episode scored 0.2 points lower than the second lowest rated, "The Panty Sniffer".