S4·E21 Turn of the Screws

Episode recap

In the episode "Turn of the Screws," the CSI team investigates a roller coaster accident that resulted in six fatalities. The team must determine whether the incident was an accident or a deliberate act of violence.

The investigation is complicated by the fact that the team is also working on a separate case involving the murder of a 13-year-old girl. Warrick and Catherine are assigned to this case and are tasked with finding the killer.

The episode focuses on the CSI team's efforts to piece together the events surrounding the roller coaster accident and the murder of the young girl. The team uses advanced forensic techniques to gather evidence and reconstruct the crime scenes.

The episode explores the complexities of the two cases and the challenges faced by the CSI team as they work to solve them. The team's expertise and dedication are put to the test as they navigate the intricate details of each case.

The episode is part of the fourth season of the series, which follows the work of a team of forensic experts in Las Vegas as they solve crimes and bring justice to the victims and their families.