Residents of the small mountain community of Wrightwood in Southern California are trapped as mudslides wreak havoc following a holiday storm. Firefighters race against time to rescue those stranded in vehicles, while a shelter-in-place order remains in effect. The aftermath of the atmospheric river has left the region submerged in up to 10 inches of rain in just over a day. What will happen next as the community faces the aftermath of this natural disaster?