Fear the Walking Dead2015

[last lines]

Liza Ortiz:
[Griselda Salazar passes away as Dr. Exner prepares to terminate her brain] What are you doing?

Dr. Bethany Exner:
The time varies from person to person, but we know that muscle impulse resumes after death. Any death. They all come back, we all come back.

Dr. Bethany Exner:
[Dr. Exner reaches over to grab out a bolt pistol] This is a captive bolt pistol. It's used for livestock. Traumatic brain injury is the only thing that stops it. It's the only way to stop them. She'll turn, Liza. And we don't want her to turn.

[Liza gasps while stopping Dr. Exner, taking the bolt pistol to kill the brain herself, Liza fires the pistol into Griselda's forehead]