I agree with a lot of the reviews here; however the flick is NOT a one star.
Not going to go into all the intricacies of the movie but I'm inclined to believe the "mysteriously" fired nuke by one of our enemies from an unknown origin was the work of a cyber attack towards the U.S. to force us into launching a retaliatory nuke at one of our enemies plunging the world into WWIII and we'd have been to blame for it all. This incredibly entertaining flick ends with a lot to be desired, tho.