brendan mcdonough: that's pretty uncommon to see a fire completely shift 180 degrees. it began running straight at brendan "donut" mcdonough, the lookout. brendan mcdonough: captain jesse reached out because he could see where i was from up top. and so he called over the radio and said, "hey, donut, i think it's about time for you to get out of there, man. move fast." and i did that. got a ride down. and so now this fire has turned around. my brother is on the complete south end, and i am on the north end, opposite ends of this fire. so the granite mountain hotshots were in what's called the blacks. the best safety zone, where fire's already burnt. kyle dickman: all they were doing is watching the burn. they can just look down and see this ominous scene. there's these black smoke. it's dark. and it's just all the colors of hell sweeping down this valley toward this town. [music playing] it became very clear that the town of yarnell was imminently threatened by this fire. we started evacuating yarnell. man: we just pulled out. yarnell is blowing up. kyle dickman: the gra

brendan mcdonough: everyone's journey after the tragedy has been different. there's a lot to learn from it. for me, it's been giving back and, you know, paying it forward and trying to help people understand their sacrifice. karen davis, the nurse who survived the entrapment in the mega fire in paradise, california, says she lost everything in the inferno. battling the trauma from the flames, she decided to move to las vegas to be closer to her daughter and rebuild her shattered life. once there, karen continued her career in health care. she also decided to become a member of the henderson, nevada, community emergency response team, aiming to help others in future emergencies. a testament to her inner strength and resiliency. for more information on what you can do in a wildfire and how to combat the growing climate crisis, please go to cnn.com/violentearth. i'm liev schreiber. thanks for watching. good night. storm chaser: take that shed. narrator: it's hard to imagine the power of mother nature. storm chaser: watch behind her, scotty. narrator: even if you