A series of cryptic messages embedded within t-shirt designs may help Mac figure out whom a serial killer's next targets may be. And one of the targets may be a CSI.

A hotel concierge falls to her death in the hotel atrium, and a woman says she shot the man who beat her husband to death with a hammer in self-defense.

During a Blue Train rave, a young girls dies among party goers when she starts bleeding from her eyes, nose, and mouth. The CSI's believe her to be a victim of a biological attack. The investigation is further complicated when it is revealed that Hawkes once knew the girl. Further up town, a rich playboy is found drowned in his indoor lap pool with his former maid as a suspect. Written by Nichollette

The investigation of the death of a professional paintball player is complicated by the discovery of drugs supposedly confiscated in a drug bust conducted by detective Flack years earlier.

Hawkes is identified as the killer in a robbery and shooting, and CSI has to prove that he was framed. It turns out that Shane, the t-shirt killer, choreographed the entire incident.

A teenage girl is killed, and the only potential witness is her deaf mother. The case also brings back some haunting memories for Lindsey. Meanwhile, CSI also investigates the murder of a star figure skater.

A competitor is murdered during an idiot run shopping cart race in Central Park, and CSI suspects that a man found dead in a brownstone may have been murdered by a missing woman that he may have been holding hostage.

The death of a drag queen appears to be related to an old rape case involving a congressman, and two of the suspects in a second murder case are discovered to have used a professional alibi-providing company to conceal their affair.

A personal shoplifter supposedly turns murderer when a loss-prevention officer gets to close to her operation. Mac and Hawkes take a closer look at the death of a college student who was recently inducted into a secret fraternity.

A woman is found dead in a bathtub and a bullet is found, but she has no entry or exit wounds. And Stella possibly gets infected with HIV-positive blood while investigating a second murder scene.

A conman is shot to death, and detectives find discover a large Noah's Ark behind his house. Meanwhile, an anti-cigarette protester is killed when somebody sets his cigarette outfit on fire.

A famous magician plans three death-defying stunts on three consecutive nights. But on the first two nights, two of his assistants die in ways that eerily resemble his stunts. Can CSI solve the mystery before there's a third victim?

At a French Revolution themed fund raiser at the UN, specifically at the French consulate, Mac, Stella and Hawkes find themselves hurdling diplomatic road blocks investigating two murders leading to an unexpected suspect. Meanwhile, Danny and Lindsay reunite on a blinged out cockroach that lead to murder of a prominent chef. Written by carly

Two murder victims actually turn out to be terminally-ill patients who wanted to go out in style, and a third victim who later comes back to life turns out to be part of a hibernation experiment.

A body of a woman, Emma, in a black party dress is found in a dumpster. Her head is wrapped in packing tape. When the ME examines the body, he finds that her eye lids have been removed. This leads Mac to a recently released serial killer with the same MO. The second case possibly involves the Russian mafia. Lindsay and Danny team up to unravel the truth. Written by Ploy P.

A man dressed like an angel dies while trying to make a daring jump. But it seems one of his equipment was tampered with. Philadelphia homicide detective Scotty Valens arrives and claims that Stella's DNA was identified as being linked to a ten year old murder in Philadelphia. But Stella claims she wasn't even there when it happened so they try to find out what's going on. And Mac learns from the Chief that he will be investigated for Clay Dobson's questionable death despite Mac's claims that he didn't do anything. Written by rcs0411@yahoo.com

An Irish gang sets an elaborate plot to reclaim a drug shipment being held at CSI after a bust, but Mac, Stella and Hawkes are forced to take them on. Meanwhile, Danny is being held as a hostage at another location by the same gang.