CrimeDramaMysteryCBS

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!

Worst episode
S9E18 Mascara
6.3910 votes
Best episode
S9E1 For Warrick
9.01,325 votes
Top season
Season 7
8.1avg
Binge time
10d 6h
335 episodes
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons15

All123456789101112131415

Episode Rankings

  1. #1 Worst Episode
    Click to reveal
    CSI: Crime Scene Investigation Season 9 Episode 18 - Mascara
    6.3/10(910 votes)

    S9:E18

    Langston is shocked when his former student is found murdered and becomes the focus of a CSI investigation into the world of Mexican wrestling.

    Director:William Friedkin
    Writer:Unknown

    Be the first to start the conversation for this episode

  2. CSI: Crime Scene Investigation Season 6 Episode 20 - Poppin' Tags
    6.8/10(839 votes)

    S6:E20

    The CSI team is lead into the rap music world as they investigate the murders of three rival teen rappers.

    Director:Bryan Spicer
    Writer:Dustin Lee Abraham

    Be the first to start the conversation for this episode

  3. CSI: Crime Scene Investigation Season 15 Episode 8 - Rubbery Homicide
    6.7/10(448 votes)

    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

  4. CSI: Crime Scene Investigation Season 11 Episode 1 - Shock Waves
    6.9/10(1041 votes)

    S11:E1

    The CSI team investigates a well-orchestrated bombing at the funeral of Officer Franklin Clark

    Director:Alec Smight
    Writers:David Weddle, Bradley Thompson

    Be the first to start the conversation for this episode

  5. CSI: Crime Scene Investigation Season 15 Episode 4 - The Book of Shadows
    6.8/10(478 votes)

    S15:E4

    A chemistry teacher's science experiment goes horribly wrong.

    Director:Brad Tanenbaum
    Writer:Gavin Harris

    Be the first to start the conversation for this episode

  6. CSI: Crime Scene Investigation Season 14 Episode 20 - Consumed
    6.8/10(461 votes)

    S14:E20

    As the CSIs hunt a cannibalistic killer, they realize there is more than one.

    Director:Karen Gaviola
    Writer:Tom Mularz

    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 14 - Exile
    6.9/10(507 votes)

    S13:E14

    The CSIs investigate the demise of a famous Cuban singer’s sister who’s in town as part of a U.S. tour. Meanwhile, Hodges begins to get cold feet at the prospect of marrying his Italian bombshell girlfriend.

    Director:Jeffrey G. Hunt
    Writer:Carlos M. Marimon

    Be the first to start the conversation for this episode

  8. CSI: Crime Scene Investigation Season 13 Episode 20 - Fearless
    7.0/10(470 votes)

    S13:E20

    The CSI team investigates a popular spiritual retreat when a body is found floating in a mud bath. Meanwhile, Hodges questions his marriage plans to Elisabetta.

    Director:Eagle Egilsson
    Writer:Gavin Harris

    Be the first to start the conversation for this episode

  9. CSI: Crime Scene Investigation Season 15 Episode 7 - Road to Recovery
    7.0/10(443 votes)

    S15:E7

    The CSI team take a look into the death of a woman who has been drinking and taking drugs in a pool at a rehab facility.

    Director:Alec Smight
    Writer:Andrew Dettmann

    Be the first to start the conversation for this episode

  10. CSI: Crime Scene Investigation Season 10 Episode 14 - Unshockable
    7.1/10(772 votes)

    S10:E14

    When a band member of Rascal Flatts is electrocuted by his own guitar during a concert, the CSI team investigates if it was a case of foul play.

    Director:Kenneth Fink
    Writer:Michael Frost Beckner

    Be the first to start the conversation for this episode

  11. CSI: Crime Scene Investigation Season 11 Episode 3 - Blood Moon
    7.1/10(772 votes)

    S11:E3

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

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

    Be the first to start the conversation for this episode

  12. CSI: Crime Scene Investigation Season 11 Episode 16 - Turn On, Tune In, Drop Dead
    7.1/10(732 votes)

    S11:E16

    The team investigates two apparent corpses who aren't exactly dead at all.

    Director:Paul McCrane
    Writer:Tom Mularz

    Be the first to start the conversation for this episode

  13. CSI: Crime Scene Investigation Season 9 Episode 24 - All In
    7.1/10(722 votes)

    S9:E24

    A cache of missing chips from a closed down casino turn up in Vegas and a string of murders follow, leading Langston to use deadly force for the first time in his career as a CSI.

    Director:Paris Barclay
    Writer:Unknown

    Be the first to start the conversation for this episode

  14. CSI: Crime Scene Investigation Season 10 Episode 12 - Long Ball
    7.1/10(700 votes)

    S10:E12

    The CSI investigates the mystifying death of a former pro golfer whose allegiance to the game might have cost him everything.

    Director:Alec Smight
    Writer:Christopher Barbour

    Be the first to start the conversation for this episode

  15. CSI: Crime Scene Investigation Season 12 Episode 21 - Dune and Gloom
    7.1/10(651 votes)

    S12:E21

    When a bomb kills an off-road race truck driver mid-race, the CSI team is called on the scene to investigate why.

    Director:Jeffrey G. Hunt
    Writer:Tom Mularz

    Be the first to start the conversation for this episode

  16. CSI: Crime Scene Investigation Season 14 Episode 3 - Torch Song
    7.1/10(500 votes)

    S14:E3

    The CSI team investigates a fire at a music venue that leaves four people dead, including two band members.

    Director:Brad Tanenbaum
    Writer:Unknown

    Be the first to start the conversation for this episode

  17. CSI: Crime Scene Investigation Season 14 Episode 8 - Helpless
    7.1/10(489 votes)

    S14:E8

    A dead man is found inside a human-size hamster ball; the team collaborates on a serial rapist investigation.

    Director:Karen Gaviola
    Writer:Tom Mularz

    Be the first to start the conversation for this episode

  18. CSI: Crime Scene Investigation Season 14 Episode 17 - Long Road Home
    7.1/10(480 votes)

    S14:E17

    A murdered groupie and a missing prostitute both have connections to a mysterious band.

    Director:Philip Conserva
    Writer:Gavin Harris

    Be the first to start the conversation for this episode

  19. CSI: Crime Scene Investigation Season 5 Episode 4 - Crow's Feet
    7.2/10(864 votes)

    S5:E4

    A woman is found dead in a hotel suite with symptoms of the ebola virus. Another woman is found dead with similar symptoms. Catherine and Nick investigate. Sara and Greg with help from Grissom try to determine how a the owner of a home was killed. His home was tented for infestation.

    Director:Richard J. Lewis
    Writer:Josh Berman

    Be the first to start the conversation for this episode

  20. CSI: Crime Scene Investigation Season 5 Episode 12 - Snakes
    7.2/10(848 votes)

    S5:E12

    The swing shift has a busy time. Warrick looks into the murder of man by someone who apparently needs a wheelchair. Nick looks into the murder of woman in the subculture of the narcocorrido, songs about drug murders. The night shift is slow and lends help to Catherine's team.

    Director:Richard J. Lewis
    Writer:Dustin Lee Abraham

    Be the first to start the conversation for this episode

  21. CSI: Crime Scene Investigation Season 15 Episode 16 - The Last Ride
    7.1/10(416 votes)

    S15:E16

    The CSI team investigates a death involving a vintage Rolls Royce and a chrome-covered victim.

    Director:Timothy Beavers
    Writer:Gavin Harris

    Be the first to start the conversation for this episode

  22. CSI: Crime Scene Investigation Season 11 Episode 2 - Pool Shark
    7.2/10(784 votes)

    S11:E2

    The team investigates when a woman is attacked by a shark in the pool at a Las Vegas casino.

    Director:Michael Nankin
    Writer:Dustin Lee Abraham

    Be the first to start the conversation for this episode

  23. CSI: Crime Scene Investigation Season 9 Episode 13 - Deep Fried and Minty Fresh
    7.2/10(761 votes)

    S9:E13

    Langston and Nick are called to investigate a murder at a fast food restaurant and have quite a task ahead of them when they discover that much of the evidence is coated in cooking oil.

    Director:Alec Smight
    Writers:Corinne Marrinan, Sarah Goldfinger

    Be the first to start the conversation for this episode

  24. CSI: Crime Scene Investigation Season 12 Episode 6 - Freaks & Geeks
    7.2/10(758 votes)

    S12:E6

    The murder of a popular sideshow performer sends the team behind the scenes at a carnival freak show.

    Director:Alec Smight
    Writer:Christopher Barbour

    Be the first to start the conversation for this episode

  25. CSI: Crime Scene Investigation Season 11 Episode 14 - All That Cremains
    7.2/10(752 votes)

    S11:E14

    The Crime Scene crew investigates the gruesome murder of a high-powered, widowed lawyer, while Ray faces that it is time to move on from his old life.

    Director:Jeffrey G. Hunt
    Writer:Dustin Lee Abraham

    Be the first to start the conversation for this episode

Worst Episodes Summary

"Mascara" is the worst rated episode of CSI: Crime Scene Investigation. It scored 6.3/10 from 910 votes. Directed by William Friedkin and written by Unknown, it aired on April 2, 2009. This episode scored 0.5 points lower than the second lowest rated, "Poppin' Tags".

Keep going

Browse CSI: Crime Scene Investigation by season

If you like CSI: Crime Scene Investigation