A plane filled with dead passengers spurs an investigation in the opener of this series, in which a vampiric virus spreads through New York City.
After being kidnapped, Jake breaks free and goes on the hunt for the people who kidnapped him. Constable Hayward continues to look for evidence to bring down Leslie.
When a college student is killed in her dorm room Moretti and Pierce are asked to help solve the crime. The investigation proves uncomfortable for Pierce and forces him to confront some truths about his past. Moretti begins to reassess her relationship with Hathaway.moreless
Mac's team has to figure out if a high stakes tournament lead to murder and hence the CSIs find themselves immersed in the world of competitive video gaming.