A decision made instinctively in a moment of panic should have ended her life; instead, it changed her world.

As she struggled with the heartbreaking loss of her father, Sarah Castle Gilbert planned another weekend trip to visit her mother in Florida, assuring her disgruntled husband she'd be back for their daughter's first day of kindergarten. A pinky-swear with the five-year-old added emphasis to that commitment.

But an emergency landing during the journey home becomes a terrifying nightmare when Sarah is forced to navigate the unspeakable dangers of an outdated airport terminal under siege. Fear and guilt become constant companions as the promise to her child would surely be broken.

The situation only intensifies with the arrival of a mysterious yet charismatic young man whose intentions are questionable at best.

While family relationships are explored, secrets revealed, and old memories confronted, a fragile new friendship emerges with a bond so intense it changes their lives as much as the incident itself.

A lawyer on her way home to Maine and a college student visiting his father in South Carolina are thrown together in a harrowing attempt to save the few who survived an evil man's rage.