It is 6 o’clock on a Friday evening at a South Yorkshire bank. Lucille Walker calls in to pick up her husband, Colin, accompanied by their six-year-old son, Stephen. After locking the doors, Colin pre-sets the time lock of the vault for Monday morning - 63 hours later. Just as they are about to leave, they notice that Stephen is missing. As the vault cannot be opened manually, it is a race against time to save the young boy. Also features a young Sean Connery in his first speaking part.