CSI season 4 was premiered on 9-25-2003 with the episode entitled ‘Assume Nothing (1)’. Season finale ‘Bloodlines’ was aired on 5-20-2004. Season opens with two couples as they meet in a bar and one of the couples is murdered. Once again dealing with such kinda mysterious and tragedies, season ends up with the case of a casino employee who’s beaten and raped on her way to home.

Season’s Top Ranked Episode- Bad Words

A teenage girl is killed in a house-fire so Catherine, Nick and Warrick are trying to find out the cause of the house wire. Sara and Grissom investigate the case of a man who’s found dead with letter tiles in his stomach. The targeted man was a competitor in a word game tournament.

Season’s episodes-

1. Assume Nothing (1) (download) - Watch it
2. All for Our Country (2) (download) - Watch it
3. Homebodies (download) - Watch it
4. Feeling the Heat (download) - Watch it
5. Fur and Loathing (download) - Watch it
6. Jackpot (download) - Watch it
7. Invisible Evidence (download) - Watch it
8. After the Show (download) - Watch it
9. Grissom Versus the Volcano (download) - Watch it
10. Coming of Rage (download) - Watch it
11. Eleven Angry Jurors (download) - Watch it
12. Butterflied (download) - Watch it
13. Suckers (download) - Watch it
14. Paper or Plastic (download) - Watch it
15. Early Rollout (download) - Watch it
16. Getting Off (download) - Watch it
17. XX (download) - Watch it
18. Bad to the Bone (download) - Watch it
19. Bad Words (download) - Watch it
20. Dead Ringer (download) - Watch it
21. Turn of the Screws (download) - Watch it
22. No More Bets (download) - Watch it
23. Bloodlines (download) - Watch it