Great suspense from the start as the bomb threat started to activate right away and time is tickling down, but it took quite long for the grand reveal to uncover, and the reasoning behind the threat is a bit ridiculous to be honest. However, the way they murk the line between the hero and villain is pretty respectable, the intention of the villain is one that is easy to symphatize with, just as they faced with the biggest question on humanity, that right there is the whole vision the movie aims to present.