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- Season 4 overviewOct 2, 2003-May 20, 200423 episodesSeason 4 episodes1. Assume Nothing; All for Our Country Oct 2, 2003
- Team scours security tapes for clues to a double homicide; murder suspects are found shot to death.
- 2. All for Our Country Oct 2, 2003
- Grissom receives a jolt when murder suspects are found shot to death.
- 3. Homebodies Oct 9, 2003
- Investigators find a woman's mummified corpse locked in a closet; a boy shoots himself.
- 4. Feeling the Heat Oct 23, 2003
- The team investigates the deaths of a child left in a hot car and a woman who washed up on a beach.
- 5. Fur and Loathing Oct 30, 2003
- A team explores the world of fetishes after finding a dead man dressed in a raccoon costume.
- 6. Jackpot Nov 6, 2003
- Grissom travels to a small town in northern Nevada where a dog has found a human head.
- 7. Invisible Evidence Nov 13, 2003
- After a court disallows evidence, the team must find new facts to convict a suspect.
- 8. After the Show Nov 20, 2003
- Catherine leads an investigation to find a model who has been missing for several days.
- 9. Grissom Versus the Volcano Dec 11, 2003
- The CSI team is called to investigate a car bomb explosion and the death of a musician's wife.
- 10. Coming of Rage Dec 18, 2003
- A teenager is beaten to death with a hammer; a gunshot victim is in her own house.
- 11. Eleven Angry Jurors Jan 8, 2004
- A holdout juror is murdered behind closed doors during deliberations.
- 12. Butterflied Jan 15, 2004
- Grissom investigates the murder of a woman who looks like Sara.
- 13. Suckers Feb 5, 2004
- Someone steals a rare piece from a 17th-century Japanese art.
- 14. Paper or Plastic? Feb 12, 2004
- The team investigates a multiple homicide that took place after a grocery store robbery went awry.
- 15. Early Rollout Feb 19, 2004
- Team probes the execution-style murder of a millionaire and his wife.
- 16. Getting Off Feb 26, 2004
- Illicit drugs and addiction are found while investigating a knifing.
- 17. XX Mar 11, 2004
- The body of a female inmate is found tied to the a prison bus.
- 18. Bad to the Bone Apr 1, 2004
- A loner beats a man to death with his bare hands, then dies in police custody.
- 19. Bad Words Apr 15, 2004
- A competitor at a gaming tournament ends up dead with an "S" tile lodged in his throat.
- 20. Dead Ringer Apr 29, 2004
- A murder investigation where all the victims and suspects are cops.
- 21. Turning the Screws May 6, 2004
- Investigators must determine whether a fatal roller coaster incident was an accident or foul play.
- 22. No More Bets May 13, 2004
- Two gamblers are found dead shortly after scamming several of Sam Braun's casinos.
- 23. Bloodlines May 20, 2004
- A rape victim identifies her rapist, but the DNA evidence suggests he is not the person responsible.
The fourth season of CSI: Crime Scene Investigation premiered on CBS on September 25, 2003, and ended May 20, 2004. The series stars William Petersen and Marg Helgenberger.
Grissom and Catherine arrive to investigate the crime scene and gunshots start. Grissom finds that the bullets are in the trunk in bag. Nick and Capt. Brass help the investigation.
Watch CSI: Crime Scene Investigation — Season 4 with a subscription on Hulu, Paramount+, or buy it on Fandango at Home, Prime Video, Apple TV.
CSI: Crime Scene Investigation. Follows a group of Crime Scene Investigators (CSI's) who work with the Las Vegas Police Department (LVPD) to solve crimes by meticulously examining evidence by using advanced scientific methods and technology in Las Vegas, Nevada.
The fourth season of CSI: Crime Scene Investigation originally aired on CBS on September 25, 2003 and ended on May 20, 2004. The season consists of 23 episodes. Main Cast. William Petersen as Gil Grissom. Marg Helgenberger as Catherine Willows. Gary Dourdan as Warrick Brown. George Eads as Nick Stokes. Jorja Fox as Sara Sidle.
Currently you are able to watch "CSI: Crime Scene Investigation - Season 4" streaming on Hulu, Paramount Plus, Paramount Plus Apple TV Channel , Paramount+ Amazon Channel, Paramount+ Roku Premium Channel or buy it as download on Apple TV, Amazon Video, Google Play Movies, Fandango At Home.
A casino employee is beaten and raped on her way home from work, but she survives and identifies her attacker. Every available episode for Season 4 of CSI: Crime Scene Investigation on Paramount+.