As they flee on a helicopter, Lindsey warns them of a micro-explosive implanted in her head, and before Ethan can use a defibrillator to disable the device, it goes off, killing Lindsey.
Lindsey warns them of a micro-explosive. This micro-explosive is implanted in her head. They flee on a helicopter. It goes off, killing Lindsey. Ethan can use a defibrillator to disable the device.