Sattler assists the park's game warden, Robert Muldoon, in a search for survivors, but they only find Malcolm before the Tyrannosaurus rex returns. They escape in one of the vehicles. Unable to decipher Nedry's code to reactivate the security system, Hammond and the park's chief engineer Ray Arnold opt to reboot the entire park's system. The group shuts down the park's grid and retreats to an emergency bunker, while Arnold heads to a maintenance shed to complete the rebooting process. When he fails to return, Sattler and Muldoon head to the shed as well. They discover the shutdown has deactivated the remaining fences and released the Velociraptors; Muldoon distracts the raptors while Sattler turns the power back on. She discovers Arnold's severed arm and escapes. Soon after, the raptors ambush and kill Muldoon.