Fear the Walking Dead: Passage - Season 1 Episode 4 Part 4

Gabi and Sierra are trudging down a road towards the boarder. They seem to be in the middle of a discussion, but Sierra keeps pulling ahead and tells Gabi to keep up. Sierra admits to being from Los Angeles, California, that she left when the military came, but that it didn't matter because "the bombs followed us." Gabi tells Sierra that "you are not the only one to loose someone." Gabi says that she lost her sister because "I couldn't stop them." Sierra unsheathes her knife and tells Gabi to go for the eye, temple or base of the skull, but be careful not to hit the skull.