Natalie is found on the far end of the rooftop early on the first day. She will call out to Frank and ask for his assistance if approached, and will easily agree to join him. Alternatively, Frank can recruit Jeff before approaching Natalie.
When she comes near Jeff, they will notice each other and hug upon being reunited, allowing Frank to photograph them for a Photo Op. Frank will then interrupt them and offer to bring them to a safer place.
After being rescued, she will wait in the room with the green door. When Kindell Johnson believes that there is no helicopter coming in three days, he rallies up the other survivors in the same room, including Natalie, to leave the Security Room.
If Frank does not stop Kindell's mutiny, Natalie will leave the Security Room along with the other survivors. They will no longer count towards the number of rescued survivors.