CSI: Crime Scene Investigation backdrop
Crime•Drama•Mystery

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!

Binge this in 10d 6h•Peaking at 9.4/10

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.

Airs on
CBS
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons15

All123456789101112131415

Episode Rankings

  1. #1 Worst Episode
    Click to reveal
    CSI: Crime Scene Investigation Season 11 Episode 3 - Blood Moon
    6.0/10(12 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

    Be the first to start the conversation for this episode

  2. CSI: Crime Scene Investigation Season 10 Episode 16 - The Panty Sniffer
    6.2/10(10 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
    Writers:Richard Catalani, Jacqueline Hoyt

    Be the first to start the conversation for this episode

  3. CSI: Crime Scene Investigation Season 12 Episode 17 - Trends with Benefits
    6.2/10(9 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

    Be the first to start the conversation for this episode

  4. CSI: Crime Scene Investigation Season 15 Episode 8 - Rubbery Homicide
    6.2/10(12 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

    Be the first to start the conversation for this episode

  5. CSI: Crime Scene Investigation Season 5 Episode 5 - Swap Meet
    6.3/10(15 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

    Be the first to start the conversation for this episode

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

    Be the first to start the conversation for this episode

    7. Trending NowTRENDING NOW

    The 20 BEST Episodes of CSI: Crime Scene Investigation

    READ
  7. CSI: Crime Scene Investigation Season 13 Episode 18 - Sheltered
    6.3/10(9 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 Daley

    Be the first to start the conversation for this episode

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

    Be the first to start the conversation for this episode

  9. CSI: Crime Scene Investigation Season 15 Episode 6 - The Twin Paradox
    6.4/10(11 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

    Be the first to start the conversation for this episode

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

    Be the first to start the conversation for this episode

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

    Be the first to start the conversation for this episode

  12. CSI: Crime Scene Investigation Season 4 Episode 1 - Assume Nothing (1)
    6.5/10(14 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

    Be the first to start the conversation for this episode

  13. CSI: Crime Scene Investigation Season 9 Episode 2 - The Happy Place
    6.5/10(12 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

    Be the first to start the conversation for this episode

  14. CSI: Crime Scene Investigation Season 12 Episode 19 - Split Decisions
    6.5/10(10 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 Daley, Richard Catalani

    Be the first to start the conversation for this episode

  15. CSI: Crime Scene Investigation Season 13 Episode 5 - Play Dead
    6.5/10(9 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

    Be the first to start the conversation for this episode

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

    Be the first to start the conversation for this episode

  17. CSI: Crime Scene Investigation Season 14 Episode 15 - Love for Sale
    6.5/10(12 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

    Be the first to start the conversation for this episode

  18. CSI: Crime Scene Investigation Season 15 Episode 18 - The End Game
    6.5/10(12 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

    Be the first to start the conversation for this episode

  19. CSI: Crime Scene Investigation Season 1 Episode 6 - Who Are You?
    6.6/10(12 votes)

    #19 - Who Are You?

    S1:E6

    Catherine violates department protocol when she takes the case of a rape accusation against her ex-husband. Warrick and Sara search for the missing bullet that will either exonerate or indict a cop for murder. Grissom and Nick investigate when a female skeleton is found under a house buried in cement.

    Director:Danny Cannon
    Writers:Josh Berman, Carol Mendelsohn

    Be the first to start the conversation for this episode

  20. CSI: Crime Scene Investigation Season 1 Episode 10 - Sex, Lies and Larvae
    6.6/10(12 votes)

    #20 - 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

    Be the first to start the conversation for this episode

  21. CSI: Crime Scene Investigation Season 7 Episode 14 - Meet Market
    6.6/10(11 votes)

    #21 - 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

    Be the first to start the conversation for this episode

  22. CSI: Crime Scene Investigation Season 9 Episode 14 - Miscarriage of Justice
    6.6/10(12 votes)

    #22 - 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

    Be the first to start the conversation for this episode

  23. CSI: Crime Scene Investigation Season 10 Episode 6 - Death and the Maiden
    6.6/10(11 votes)

    #23 - 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

    Be the first to start the conversation for this episode

  24. CSI: Crime Scene Investigation Season 10 Episode 8 - Lover's Lanes
    6.6/10(11 votes)

    #24 - 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

    Be the first to start the conversation for this episode

  25. CSI: Crime Scene Investigation Season 12 Episode 15 - Stealing Home
    6.6/10(11 votes)

    #25 - 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

    Be the first to start the conversation for this episode

Worst Episodes Summary

"Blood Moon" is the worst rated episode of "CSI: Crime Scene Investigation". It scored 6/10 based on 12 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".