Christopher Carlson sprang into action when smoke and embers ushered a fire that threatened to envelop his Noble, Oklahoma, home. After taking his 12-year-old stepson to safety, Carlson raced against time to assist neighbors and try to save his trailer from one of more than a dozen wildfires that, as of Saturday, had destroyed more than 120 structures. "That’s what we do in Oklahoma," Carlson told CNN on Saturday from Norman. "We help each other because we are prone to tornadoes, disasters and fires."