A mother's sanity is called into question when her child disappears during a plane flight in this tense thriller. Still reeling from her husband's unexpected death, Kyle Pratt (Jodie Foster) is on a plane heading from Berlin to New York when her daughter vanishes. When the captain (Sean Bean) and the air marshal (Peter Sarsgaard) begin to doubt that the child was ever on board, Kyle realizes she must rely on herself to find her little girl.