The CSI team unravels a string of complex murders while racing to identify a serial killer whose diabolical medical skills confound the experts.
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1. Meine Leiche, deine Leiche
24. Sept. 2009 45m 8.3A 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.
2. Sehnsüchte in Sodom
1. Okt. 2009 45m 7.7The 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.
3. Fast wie du und ich
8. Okt. 2009 45m 7.7The 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.
4. Coup de gráce?
15. Okt. 2009 44m 7.6When a policeman kills another officer, the CSIs must look to the evidence to determine if the shooting was premeditated or an accident.
5. Sport & Mord
29. Okt. 2009 45m 6.8After 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.
6. Der Tod und das Mädchen
5. Nov. 2009 44m 6.5When two seemingly different crimes turn out to be related, the CSIs discover they're interlocking parts of the same revenge plot.
7. Eine Reise ans Ende der Moral (III)
12. Nov. 2009 45m 7.9The 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).
8. Kopfball
19. Nov. 2009 45m 6.5A bowling tournament is disrupted when an important piece of evidence is uncovered, leading the CSIs to investigate a murder at the same bowling alley.
9. Mit besten Grüßen, Dr. Jekyll
10. Dez. 2009 45m 8.6When 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.
10. Romeo will sterben
17. Dez. 2009 43m 7.9The 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.
11. Schön ist die Sünde nur bis zum Tod
14. Jan. 2010 45m 8.1Two 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.
12. Das Ende der Legende
21. Jan. 2010 44m 6.8The CSI investigates the mystifying death of a former pro golfer whose allegiance to the game might have cost him everything.
13. Explosionsmotoren
4. Feb. 2010 43m 7.6The 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.
14. Über den Rubikon
4. März 2010 45m 7.4When 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.
15. Nimmerland
11. März 2010 44m 7.4When a young boy is found murdered, the CSI team uncovers evidence that may link his death to an old case that recently resurfaced.
16. Duftende Höschen
1. Apr. 2010 45m 6.2Catherine 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.
17. Der Wahnsinn des Dr. Jekyll
8. Apr. 2010 45m 7.6When 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.
18. CSI: Die nächste Generation
15. Apr. 2010 45m 6.8When 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.
19. Weltbilder
22. Apr. 2010 44m 6.7When 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.
20. Schluss mit lustig!
29. Apr. 2010 44m 7.6A 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.
21. Schutz- und Racheengel
6. Mai 2010 43m 6.9A mother thought to be grieving for the loss of her family three years ago becomes a suspect in a CSI investigation.
22. Dr. Langston unter Feinden
13. Mai 2010 43m 7.9The 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.
23. Dr. Jekyll unter Freunden
20. Mai 2010 45m 7.8Die Jagd auf Dr. Jekyll erreicht ihren Höhepunkt: Langston erfährt, wer hinter dem brutalen Killer steckt.