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"),
Kitty (CSI: Crime Scene Investigation) attacks Avery and cuts her with his knife. Avery says her code word and he is then arrested. At the end, Avery arranges for Susan's husband to come home. As she is leaving Avery tells D.B. about a bank robbery of three cents from 80 million chequing accounts. This episode launched the third "CSI" series, "". It is written by the creators of "CSI: Miami" and "CSI: NY", and marks the first appearance of Patricia Arquette as Dr Avery Ryan. This episode was included in the Season 14 DVD. This episode is also included in "CSI: Cyber"s season 1 DVD