Kyle Pratt is a frantic but fiercely intelligent mother whose deepest protective instincts will be triggered by a haunting in-flight nightmare: in the middle of the trans-Atlantic trip, her young daughter turns up missing without a trace. Or does she? Kyle arrives on the flight still reeling from the recent loss of her husband, a woman who has gone mad with grief or a formidably determined mother whose child is in grave danger that threatens the entire plane? Adding to the growing mystery is the fact that the name of Kyle's daughter doesn't even appear on the flight manifest. Furthermore, neither of the flight attendants can remember seeing the child on the plane? Adding to the growing mystery is the fact that the name of Kyle's daughter doesn't even appear on the flight manifest. Furthermore, neither of the flight attendants can remember seeing the child on the plane. While Captain Rich and Air Marshal Gene Carson don't want to doubt Kyle's insistent claim that her daughter has vanished, all evidence points to the fact that Kyle's little girl was never on board. What is the truth behind Kyle Pratt's distress? Who on board can be trusted? And just how far will Kyle have to go to get to the bottom of the harrowing mystery? As paranoia and doubt mount among the passengers, Kyle is confronted with some of the most unsettling fears a mother could ever face--losing her child, having her very reality questioned and being trapped in a situation where no one can seem to help. Pushed to the edge and fighting for her sanity, Kyle finds herself willing to go to unimaginable lengths to save her daughter.

Flying at 40,000 feet in a cavernous, state-of-the-art 474 aircraft, Kyle Pratt faces every mother's worst nightmare when her six year-old daughter, Julia, vanishes without a trace mid-flight from Berlin to New York.