The WORST episodes of CSI: Crime Scene Investigation

Every episode of CSI: Crime Scene Investigation ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of CSI: Crime Scene Investigation!

CSI is a crime drama in which the characters use cutting-edge forensic tools to examine the evidence to solve the case. Rather than asking 'whodunnit' (investigating witnesses/suspects), CSI explores the 'howdunnit'.

Last Updated: 12/18/2023Network: CBSStatus: Ended
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Poppin' Tags
star
6.70
579 votes

#1 - Poppin' Tags

Season 6 - Episode 20 - Aired 4/13/2006

The CSI team is lead into the rap music world as they investigate the murders of three street team members.

Directors: Bryan Spicer
Watch Now:Apple TV
Deep Fried & Minty Fresh
star
6.75
1070 votes

#2 - Deep Fried & Minty Fresh

Season 9 - Episode 13 - Aired 2/12/2009

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.

Directors: Alec Smight
Watch Now:Apple TV
The Grave Shift
star
6.88
907 votes

#3 - The Grave Shift

Season 9 - Episode 11 - Aired 1/22/2009

The first day on the job for Dr. Langston turns from bad to worse when a simple burglary case quickly overlaps with a complicated arson and homicide case.

Directors: Richard J. Lewis
Watch Now:Apple TV
Disarmed And Dangerous
star
6.92
1109 votes

#4 - Disarmed And Dangerous

Season 9 - Episode 12 - Aired 1/29/2009

The detectives search for the murderer of FBI agent Billy Ray Jackson, only Billy Ray isn't really an FBI agent, and neither are his impressively capable partners, Miles Baker and Emma Solomon.

Directors: Kenneth Fink
Watch Now:Apple TV
A La Cart
star
6.92
708 votes

#5 - A La Cart

Season 8 - Episode 2 - Aired 10/4/2007

The CSI team investigates two unusual cases, one involving the suspicious death of a go-cart racer who took his hobby to the highway and paid the price with his life, and a murder at a hip new restaurant where patrons dine in the dark

Directors: Richard J. Lewis
Watch Now:Apple TV
Miscarriage of Justice
star
6.98
1089 votes

#6 - Miscarriage of Justice

Season 9 - Episode 14 - Aired 2/19/2009

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

Watch Now:Apple TV
Say Uncle
star
6.99
782 votes

#7 - Say Uncle

Season 9 - Episode 6 - Aired 11/13/2008

The team has a hard time investigating a shooting in Koreatown when none of the witnesses will talk about the crime.

Directors: Richard J. Lewis
Watch Now:Apple TV
Iced
star
7.03
677 votes

#8 - Iced

Season 5 - Episode 23 - Aired 5/12/2005

Two amorous freshmen are found dead on a sleeping bag in a dorm room, and Sara and Greg run into one dead end after another as they try to determine why the students were killed. Warrick, Nick and Catherine figure out how a man is found dead in the center of a crop circle. Ecklie is called into duty for a man found dead in his car and his body later goes missing.

Directors: Richard J. Lewis
Writer: Josh Berman
Watch Now:Apple TV
Bite Me
star
7.03
885 votes

#9 - Bite Me

Season 6 - Episode 3 - Aired 10/6/2005

The CSIs investigate a man's claim that his wife fell down a set of stairs in their home.

Directors: Jeffrey G. Hunt
Writer: Josh Berman
Watch Now:Apple TV
Fur and Loathing
star
7.03
715 votes

#10 - Fur and Loathing

Season 4 - Episode 5 - Aired 10/30/2003

The team investigates when a man's body is found on the side of the road... dressed in a racoon suit. A gunshot victim is found in a freezer.

Directors: Richard J. Lewis
Writer: Jerry Stahl
Watch Now:Apple TV
Harvest
star
7.04
742 votes

#11 - Harvest

Season 5 - Episode 3 - Aired 10/14/2004

A child is abducted. As the Amber Alert goes out, the entire team investigates in a race against time. Lindsay Willows is found hitchhiking, to the alarm of Catherine.

Directors: David Grossman
Watch Now:Apple TV
Shooting Stars
star
7.04
837 votes

#12 - Shooting Stars

Season 6 - Episode 4 - Aired 10/13/2005

The CSIs come across an abandoned military compound being used by a small cult. The CSIs grow suspicious when they see that a mass suicide has taken place, but only 11 of the 12 beds are occupied.

Directors: Danny Cannon
Writer: Danny Cannon
Watch Now:Apple TV
Leapin' Lizards
star
7.05
658 votes

#13 - Leapin' Lizards

Season 7 - Episode 22 - Aired 5/3/2007

Several suspects in a murder case are UFO-club members who believe shape-shifting aliens have been working to conquer the human race for centuries.

Directors: Richard J. Lewis
Writer: David Rambo
Watch Now:Apple TV
Room Service
star
7.05
779 votes

#14 - Room Service

Season 6 - Episode 2 - Aired 9/29/2005

An up-and-coming movie star is found dead in his hotel room after a night of partying with his groupies.

Directors: Kenneth Fink
Watch Now:Apple TV
The Chick Chop Flick Shop
star
7.05
683 votes

#15 - The Chick Chop Flick Shop

Season 8 - Episode 5 - Aired 11/1/2007

Grissom and his team investigate when an actress is killed on the set of a horror porn film.

Directors: Richard J. Lewis
Writer: Evan Dunsky
Watch Now:Apple TV
Go to Hell
star
7.05
690 votes

#16 - Go to Hell

Season 8 - Episode 3 - Aired 10/11/2007

The team investigates a girl whose whole family had been killed and she is supposedly possessed by the devil.

Directors: Jeffrey G. Hunt
Watch Now:Apple TV
Killer
star
7.06
728 votes

#17 - Killer

Season 6 - Episode 14 - Aired 2/2/2006

The CSIs must investigate when a party girl is injured and killed in a traffic accident.

Directors: Kenneth Fink
Watch Now:Apple TV
Young Man With a Horn
star
7.10
868 votes

#18 - Young Man With a Horn

Season 9 - Episode 8 - Aired 12/4/2008

A popular young singer is found dead outside an infamous Las Vegas nightclub, leading the CSI team to uncover a link between that crime and a murder 50 years earlier.

Directors: Jeffrey G. Hunt
Writer: David Rambo
Watch Now:Apple TV
Big Middle
star
7.12
724 votes

#19 - Big Middle

Season 5 - Episode 16 - Aired 2/24/2005

Catherine, Nick, and Warrick investigate a badly mutilated body in the woods. The cause of death was a shotgun blast. Nearby is a beaver dam made in part with cash. Grissom, Sarah, and Nick try to determine how a man was killed in a hotel room. It leads them to a convention of big women.

Directors: Bill Eagles
Watch Now:Apple TV
Coming of Rage
star
7.13
768 votes

#20 - Coming of Rage

Season 4 - Episode 10 - Aired 12/18/2003

Grissom, Sara, and Warrick investigate the murder of a teenager found on a construction site. Nick and Catherine try to discover how a woman on her lawn was killed by a gunshot when no-one nearby had a gun.

Directors: Nelson McCormick
Watch Now:Apple TV
Dog Eat Dog
star
7.14
804 votes

#21 - Dog Eat Dog

Season 6 - Episode 9 - Aired 11/24/2005

Catherine and Brass investigate the case in which a man is found dead in a dumpster. It soon turns out the man had a serious food problem. The trail of his death soon leads to a hotdog-eating contest.Meanwhile, Nick and Sara investigate a not-so-amicable divorce with a bizarre twist. So bizarre it eventually lead to murder when both are found dead and it looks like the dog killed one of them.

Directors: Duane Clark
Watch Now:Apple TV
Bloodsport
star
7.15
1347 votes

#22 - Bloodsport

Season 10 - Episode 5 - Aired 10/29/2009

After a beloved college football coach is found dead and his house drenched and spattered with his blood, the CSI team hunts for the killer who didn't find Coach Jimmy lovable at all.

Directors: Jeffrey G. Hunt
Watch Now:Apple TV
Working Stiffs
star
7.15
1570 votes

#23 - Working Stiffs

Season 10 - Episode 3 - Aired 10/8/2009

The team investigates the murder of Jason, a troubled computer geek working at a low-level casino support industry job who lures a colleague, Paulie, into a dangerous plan to make a working stiff's dream come true.

Directors: Naren Shankar
Watch Now:Apple TV
Suckers
star
7.16
709 votes

#24 - Suckers

Season 4 - Episode 13 - Aired 2/5/2004

Grissom, Sara, and Nick respond to an electrocution at a casino. Catherine and Warrick investigate a vampire murder.

Directors: Danny Cannon
Watch Now:Apple TV
Swap Meet
star
7.17
704 votes

#25 - Swap Meet

Season 5 - Episode 5 - Aired 10/28/2004

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.

Directors: Danny Cannon
Watch Now:Apple TV