Episode 1
Family Affair
2009-09-24 • 45 min
A rising young star is killed in a wreck and her determined stalker claims credit, but the team finds out there's more to this tragedy than meets the eye.
TV season
2009-09-24
The CSI team unravels a string of complex murders while racing to identify a serial killer whose diabolical medical skills confound the experts.
Episode 1
2009-09-24 • 45 min
A rising young star is killed in a wreck and her determined stalker claims credit, but the team finds out there's more to this tragedy than meets the eye.
Episode 2
2009-10-01 • 45 min
The son of a notorious killer is arrested on suspicion of murder, and the CSI team must overcome their natural prejudices against the boy's antecedents in order to track the true culprit.
Episode 3
2009-10-08 • 45 min
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.
Episode 4
2009-10-15 • 44 min
When a policeman kills another officer, the CSIs must look to the evidence to determine if the shooting was premeditated or an accident.
Episode 5
2009-10-29 • 45 min
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.
Episode 6
2009-11-05 • 44 min
When two seemingly different crimes turn out to be related, the CSIs discover they're interlocking parts of the same revenge plot.
Episode 7
2009-11-12 • 45 min
The CSI team helps Ray Langston investigate a prostitution ring that may have harbored a hostage he has been looking for in Miami and New York. The crossover starts on CSI: Miami S08E07 Bone Voyage (I) and CSI: New York S06E07 Hammer Down (II).
Episode 8
2009-11-19 • 45 min
A bowling tournament is disrupted when an important piece of evidence is uncovered, leading the CSIs to investigate a murder at the same bowling alley.
Episode 9
2009-12-10 • 45 min
When Nick, Greg and Hodges take Henry to celebrate his birthday at a biker bar, they uncover a double homicide and find several suspects still at the bar who may be the murderers.
Episode 10
2009-12-17 • 43 min
The CSIs dig to find the truth about how a recent shootout at a gun store might connect to a young woman who may have committed suicide.
Episode 11
2010-01-14 • 45 min
Two secretaries on holiday from Arizona attempt to steal a man's wallet and ATM pin number in a scam, and wind up dead in different locations. Meanwhile, the CSI team also investigates a disturbing medical mystery involving the dumping of human organs in a wildlife refuge.
Episode 12
2010-01-21 • 44 min
The CSI investigates the mystifying death of a former pro golfer whose allegiance to the game might have cost him everything.
Episode 13
2010-02-04 • 43 min
The case of two high school students, one dead and one missing, lead the CSIs into the underbelly of streetcar racing and a tangled web of deadly competition.
Episode 14
2010-03-04 • 45 min
When a band member of Rascal Flatts is electrocuted by his own guitar during a concert, the CSI team investigates if it was a case of foul play.
Episode 15
2010-03-11 • 44 min
When a young boy is found murdered, the CSI team uncovers evidence that may link his death to an old case that recently resurfaced.
Episode 16
2010-04-01 • 45 min
Catherine and Detective Vartann are thrown together in a hotel room for 24 hours as they stake out a duo making drugs in the room next door. Meanwhile, Nick and Langston work a case that involves a fetish which has become big business in Vegas.
Episode 17
2010-04-08 • 45 min
When the CSI team investigates the brutal murder of a family, they trace the killer to the house next door, which might belong to the "Dr. Jekyll" serial killer.
Episode 18
2010-04-15 • 45 min
When Hodges and Wendy take a group of high school CSI Explorer Scouts on a field trip, they embellish their role in solving cases and take their assignment a little bit too far.
Episode 19
2010-04-22 • 44 min
When a student is discovered murdered at Lindsey's school, the investigation takes a sharp turn when the CSIs uncover an unlikely connection between the boy's death and atrocities of the past.
Episode 20
2010-04-29 • 44 min
A legendary comic from the good old days of Las Vegas is set to reunite with his partner on stage for one night only, until one half of the famous duo is found dead.
Episode 21
2010-05-06 • 43 min
A mother thought to be grieving for the loss of her family three years ago becomes a suspect in a CSI investigation.
Episode 22
2010-05-13 • 43 min
The CSI team must investigate one of their own when Langston is accused by a former colleague of being part of the Dr. Jekyll murders, on part one of a two-part season finale of CSI.
Episode 23
2010-05-20 • 45 min
The CSI's lives are on the line as they close in on the elusive Dr. Jekyll, and more than one member of the team may not live to see his capture, on part two of a two-part 10th season finale of CSI.