When an apocalyptic tidal wave hits during the ten-year reunion of an all-girls high school, a group of women must find a way to survive on the island peak of their high school campus.

A police officer pursuing a teenage suspect onto a busy train platform, knocks a bystander onto the train tracks, critically injuring them. As an intense investigation commences, the lives of the pursued and the pursuer are thrown into turmoil.

Follow the Delaneys, who from the outside appear to be an enviably contented family. Former tennis coaches Joy and Stan are parents to four adult children. After fifty years of marriage, they have finally sold their famed tennis academy and are ready to start what should be the golden years of their lives. But after Joy disappears, her children are forced to re-examine their parents’ marriage and their family history with fresh eyes.