Mia Hall (Moretz) thought the hardest decision she would ever face would be whether to pursue her musical dreams at Juilliard or follow a different path to be with the love of her life, Adam (Blackley). But what should have been a carefree family drive changes everything in an instant, and now her own life hangs in the balance. Caught between life and death for one revealing day, Mia has only one decision left, which will not only decide her future but her ultimate fate.