Episodes
- S4 E1 - Can You Hear Me Now?September 25, 200742minAt the conclusion of last season, the CSIs faced their toughest challenge yet, when bombs where detonated across the city and Det. Flack suffered severe injuries during the explosions.This video is currently unavailable
- S4 E2 - The DeepOctober 2, 200740minA body found in the New York harbor leads Mac and the CSIs to a hidden treasure and an assassination plot on a diplomatic convoy headed to the U.N.This video is currently unavailable
- S4 E3 - You Only Die OnceOctober 9, 200741minWhen a runner drops dead in the middle of a marathon and the cause seems to be carbon monoxide, Mac and Stella can't reconcile how someone would be poisoned in the middle of Central Park.This video is currently unavailable
- S4 E4 - Time's UpOctober 16, 200743minWhen a college girl is found beheaded at a sorority party, the entire team focuses on their toughest case yet. The victims wear t-shirts emblazoned with a logo inspired by Greek mythology that offers clues and hidden messages.This video is currently unavailable
- S4 E5 - Down The Rabbit HoleOctober 23, 200743minDanny and Lindsay work to find who bludgeoned a young woman to death after her performance with Suicide Girls and their suspect list grows smaller when the murder weapon proves to be a stiletto worn by one of the women.This video is currently unavailable
- S4 E6 - BooOctober 30, 200743minA rooftop swimsuit photo shoot ends badly when the hotel's concierge falls off a balcony and is impaled by a statue. Mac, Danny and Det. Flack question their primary suspect, a supermodel who was seen arguing with the woman shortly before her death.This video is currently unavailable
- S4 E7 - Commuted SentencesNovember 6, 200743minWhen a young woman is found dead on the subway, the CSIs find evidence that proves the train was the location of a rave, New York's newest, high-speed underground party destination.This video is currently unavailable
- S4 E8 - BuzzkillNovember 13, 200742minWhen a professional paintball player is shot in a warehouse, the team assumes the murder was committed by an opposing player who took the game too far. But their investigation becomes more complicated when his opponent goes missing.This video is currently unavailable
- S4 E9 - One Wedding And A FuneralNovember 20, 200744minFive days after surviving a horrific car accident, the woman who lost control of her car while driving home drunk is murdered in her hospital room shortly after coming out of a coma.This video is currently unavailable
- S4 E10 - The Thing About HeroesNovember 27, 200742minWhile investigating the death of a base jumper, Mac, Danny and Det. Flack discover the body of a trainer found brutally murdered on his roof and whose pigeons where poisoned.This video is currently unavailable
- S4 E11 - Child's PlayDecember 11, 200744minThe CSIs are floored when Sheldon Hawkes is apprehended during an early morning run as the primary suspect in a bartender's murder.This video is currently unavailable
- S4 E12 - Happily Never AfterJanuary 8, 200842minWhen an intruder breaks into the home of a deaf family and fatally shoots their teenage daughter, Mac works with the grieving mother who relies on her other senses to provide clues that will help catch her daughter's killer.This video is currently unavailable
- S4 E13 - All In The FamilyJanuary 22, 200842minThe rules of the Idiotarod race encourage teams to sabotage their enemies' carts, so Danny, Sheldon and Det. Angell work to determine if this fun annual challenge became too competitive for one team.This video is currently unavailable
- S4 E14 - Playing With MatchesFebruary 5, 200844minWhile investigating the murder of a transgender showgirl, the CSIs work to narrow down their suspect list from a large number of guests since the victim was murdered outside a congressional banquet and a magazine launch party at the hotel.This video is currently unavailable
- S4 E15 - D.O.A. For A DayApril 1, 200842minOne of Mac's key witnesses in the investigation of the murder of a college student turns out to be his stepson Reed, who knew the victim.This video is currently unavailable
- S4 E16 - Right Next DoorApril 8, 200844minWhile investigating the murder of a music industry executive, Mac is puzzled by the account of the victim's sister, who passes a lie detector test and swears that she and her sibling were attacked by a woman who broke into their home.This video is currently unavailable
- S4 E17 - Like Water For MurderApril 15, 200842minMac, Danny and Det. Flack are puzzled when they are called to a crime scene and find an ark in the murder victim's backyard full of people, live animals and rations.This video is currently unavailable
- S4 E18 - AdmissionsApril 29, 200841minThe CSI team investigates the mysterious death of a handsome guidance counselor, and the "Taxi Cab Killer" continues to wreak havoc on the cityThis video is currently unavailable
- S4 E19 - Personal FoulMay 6, 200841minMac and Stella face diplomatic road blocks while investigating the murder of a member of a young girl's entourage of professional handlers who was killed during a French Revolution-themed fundraiser at the U.N.This video is currently unavailable
- S4 E20 - TaxiMay 13, 200841minThe CSIs investigate three bizarre cases when a man wearing medieval armor is found impaled by a lance, another is found stabbed with an ice pick and a body is stolen from the coroner's van leading the team into the world of genetic testing.This video is currently unavailable
- S4 E21 - HostageMay 20, 200842minA serial killer, whose conviction rested on his confession to a cop, has his verdict overturned when Mac jails his arresting officer. But when a victim surfaces sporting the killer's signature, Mac ignores direct orders and decides to go after him.This video is currently unavailable