Five random strangers find themselves trapped in an elevator in the World Trade Center's North Tower on 9/11. They work together, never giving up hope, to try to escape before the unthinkable happens.
As Constance (Natasha Richardson) and Nina (Toni Collette) gather at the deathbed of their mother, Ann (Vanessa Redgrave), they learn for the first time that their mother lived an entire other lifetime during one evening 50 years ago. In vivid flashbacks, the young Ann (Claire Daines) spends one night with a man named Harris (Patrick Wilson), who was the love of her life.
Katherine Watson is a recent UCLA graduate hired to teach art history at the prestigious all-female Wellesley College, in 1953. Determined to confront the outdated mores of society and the institution that embraces them, Katherine inspires her traditional students, including Betty and Joan, to challenge the lives they are expected to lead.