Sierra is a character that appears in Fear The Walking Dead: Passage.
Nothing is known about Sierra's life from before the outbreak.
Sierra is seen cautiously walking around a seemingly-abandoned military camp, navigating around a dead soldier slumped up against a truck and smoldering ruins of tents. She spots an injured woman running through the camp when suddenly she is attacked by two zombified soldiers. However, Sierra is able to put down both soldiers with her knife.
- "Part 1" (No Lines)