Seven times seven Deaths come to earth to fulfill their mission - to take with them the souls of the people assigned to them. One of the novice Deaths is unable to complete the task, because he becomes more and more human after each person he meets.
The year is 1955, and a great flood is coming to Northfork, Montana. A new hydroelectric dam is about to be installed in the mountains above the town, ready to submerge the valley in the name of progress. It is the responsibility of a six-man Evacuation Committee to relocate the townsfolk to higher ground. Most have duly departed, but a few stubborn stragglers remain – among them a priest caring for a sickly orphan, a boy whose fevered visions are leading him to believe he is a member of a roaming band of lost angels desperately searching for a way home.
Heaven Leigh Casteel, gifted and intelligent, is the eldest of five dirt-poor children struggling to survive in a mountain shack. As she endures neglect and abuse, Heaven discovers a dark secret that changes everything she thought she knew about her family. Then tragedy tears her world apart and she must forge her own way in the cruel, unknown world.
Good Samaritan Sarah Fitzpatrick has a fatal accident just before Christmas, and finds herself in the lobby before the gates of Heaven. Certain that she will be let in, she is shocked to find that her name is not on the reservation list. However, she is granted the chance to return to Earth as an "angel in training" with the requirement to help a soul in need. Sarah has the 12 days before Christmas to secure her place on the list leaving her in the race for her after-life.