Upon turning 18, Nino needs to follow the tradition of his community and form a couple to ensure eternal life on the moon. However, his heart seems to have other paths, putting into question destiny, desire, and belonging.
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.
When his mother dies, young Peter Ibbetson leaves Paris and his best friend, Mary, behind to live with a severe uncle in England. Years later, Peter is an architect with little time for women, until he begins a project with the Duke and Duchess of Towers. When Peter and the duchess become great friends, she reveals that she is Mary — but the duke soon suspects his wife of infidelity and challenges Peter to a duel, threatening the pair's second chance.
After 29-year-old Adaline recovers from a nearly lethal accident, she inexplicably stops growing older. As the years stretch on and on, Adaline keeps her secret to herself until she meets a man who changes her life.