 Greg and Warrick tap into the Expedition's trip computer to narrow down a search radius, Catherine collects up Sam's money and Sara finds the kidnapper's amputated thumb, but on returning to the lab she cannot match the print.Inside the coffin, Nick realizes that every time the CSIs click the "Watch" button, the fan supplying him with air switches off as its power supply is diverted to power the lights.He starts to rage at the unseen viewers for switching on the light.