The Secret Code is a new science fiction novel by Hollywood superstar Nicolas Cage, which tells the story of John, a university professor played by Nicolas Cage, who plays a single father after his wife died. Strict control over sons always keeps the gap between father and son. However, at the son's celebration ceremony, a mysterious letter from the "past" will completely break the quiet life of the father and son and involve them in a series of terrorist incidents and unknown fate. I think this is what you are looking for.