CSI: Crime Scene Investigation (season 4) CSI: Crime Scene Investigation (season 4) The fourth season of "" premiered on CBS on September 25, 2003 and ended May 20, 2004. The series stars William Petersen and Marg Helgenberger. Nick accidentally leaks information to a news reporter ("Assume Nothing"), and Catherine tries to discover how a body ended up in a bathtub ("All for Our Country") during the fourth season of "CSI". Supervised by Grissom and Willows, the Las Vegas CSIs are tasked with investigating the bizarre, the unlikely, and the unprecedented, including a disappearing gun ("Homebodies"), the death of a baby during a heatwave ("Feeling the Heat"),
Pilot (CSI: Crime Scene Investigation) it, then Catherine promises her that she's not going to regret it. Brass discovers that Warrick went behind his back to obtain a warrant and pulls him from his case, leaving Warrick enraged and furious at the news. Brass forces Warrick to shadow Holly. However, Warrick still has to place the bet for Judge Cohen and leaves Holly at the scene alone with a police officer. Unbeknownst to the CSI team, the officer leaves Holly's scene, leaving her to process the scene alone. The suspect returns to the scene and attacks her by pulling out a gun. Meanwhile, Grissom takes