22 episodes · first aired 2010-09-24
| Still | # | Title | Overview | Air date | Rating |
|---|---|---|---|---|---|
 | 01 | The 34th Floor 2010-09-24 | The newest member of the CSI team, Jo Danville, a former FBI agent, is welcomed to her new job by stumbling upon the body of a young woman murdered somewhere in the building that houses the NYPD Crime Lab. | 2010-09-24 | 8.5 |
 |
Ratings shown are community scores. Once OMDB is wired, these become per-episode IMDB values.
| 02 |
Unfriendly Chat 2010-10-01 |
When a young woman appears to be strangled while participating in a live online chat that Adam witnesses, the CSIs must determine if it was real or a hoax, and locate where the possible victim is. |
| 2010-10-01 |
| 8.8 |
 | 03 | Damned if You Do 2010-10-08 | When a married couple is found beaten in their home, a mother identifies her son as the killer and the CSIs believe they have their suspect, but all is not what it seems when another witness comes forward. | 2010-10-08 | 8.2 |
 | 04 | Sangre Por Sangre 2010-10-15 | When the leader of a powerful New York gang, El Puño, is found murdered, the CSIs must find the killer before a street war with a rival gang breaks out. Mac asks the co-founder of El Puño, Luther Devarro, a man he put behind bars years before, for help. | 2010-10-15 | 8.2 |
 | 05 | Out of the Sky 2010-10-22 | A jewel heist at the penthouse of one of New York's most powerful attorneys takes a bizarre turn and the case leads the CSIs to a seemingly unrelated man in the morgue. | 2010-10-22 | 8.2 |
 | 06 | Do Not Pass Go 2010-10-29 | When a badly decomposed body found is an abandoned car on a rooftop, Mac and his team must go up against a killer who is using the parents of his victims to manipulate crime scenes. | 2010-10-29 | 8.2 |
 | 07 | Hide Sight 2010-11-05 | Mac is on the hunt for a sniper who is using nitroglycerin in his bullets to explode on impact, and the prime suspect was once a missing boy from one of Mac's old cases. | 2010-11-05 | 7.6 |
 | 08 | Scared Stiff 2010-11-12 | As the CSIs investigate a case involving a woman who appears to have been scared to death in a supposedly haunted section of Central Park, Mac stumbles on another dead body buried nearby in the same part of the park. | 2010-11-12 | 8.2 |
 | 09 | Justified 2010-11-19 | When a woman's body washes up at the South Street Seaport, the CSIs unravel a dark secret from Deputy Chief Carver's past that threatens to shatter his stellar reputation and close-knit family. | 2010-11-19 | 8.5 |
 | 10 | Shop Till You Drop 2010-12-03 | Mac and the team search for the killer of a department store manager who was found dead in a holiday display window. | 2010-12-03 | 8.2 |
 | 11 | To What End? 2011-01-07 | When a man in full clown costume shoots a bakery owner, the CSIs investigate and discover a decision from Flack's past that may put him in jeopardy. | 2011-01-07 | 8.2 |
 | 12 | Holding Cell 2011-01-14 | When a Spanish club promoter is found dead, Mac must battle with the head of Barcelona's crime lab to solve the case. | 2011-01-14 | 8.0 |
 | 13 | Party Down 2011-02-04 | When a tractor-trailer carrying exclusive party guests mysteriously ends up at the bottom of the Hudson River, the CSIs must solve the mystery from the soggy remains. | 2011-02-04 | 8.4 |
 | 14 | Smooth Criminal 2011-02-11 | When the CSIs track down a suave and charming hitman, their investigation uncovers a conspiracy with far-reaching implications. | 2011-02-11 | 8.0 |
 | 15 | Vigilante 2011-02-18 | When a serial rapist is found murdered, restrained in the same manner as his victims, the CSIs weigh a feeling of justice against their sense of duty to pursue the killer. | 2011-02-18 | 8.2 |
 | 16 | The Untouchable 2011-02-25 | When a conspiracy-obsessed woman is found dead, the CSIs investigate and discover that some of her theories may have had some truth to them. | 2011-02-25 | 8.2 |
 | 17 | Do or Die 2011-03-11 | When a popular student and star pupil at Manhattan's most elite private school is murdered, the CSIs find themselves immersed in the highly competitive world of over-privileged youth. | 2011-03-11 | 8.5 |
 | 18 | Identity Crisis 2011-04-01 | Jo balances personal and professional challenges when her adopted daughter, Ellie, is the key witness in a murder investigation. | 2011-04-01 | 8.2 |
 | 19 | Food For Thought 2011-04-08 | While the team investigates the explosion of a gourmet food truck, Sheldon's new relationship could get him in big trouble at the lab. | 2011-04-08 | 8.0 |
 | 20 | Nothing For Something 2011-04-29 | The CSIs investigate a woman's death as the work of a serial killer, and Mac reconnects with his first partner after an ex-con they put away begins stalking him. | 2011-04-29 | 8.5 |
 | 21 | Life Sentence 2011-05-06 | After a hail of gunfire tears through the crime lab, Mac and his ex-partner become part of a vendetta 17 years in the making. | 2011-05-06 | 8.2 |
 | 22 | Exit Strategy 2011-05-13 | Following a near-death experience, Mac becomes determined to close his last remaining unsolved case. | 2011-05-13 | 8.5 |
