this be a really great fun film that deal with some of the aspect of time travel into the past . if one do anything to alter the past while there and what will be the effect on the future you know . no hint of an explanation be give a to what could have cause the and i guess you could call it and time storm . but the film do have have some very interesting twist and a cool end . not only that and but the flight sequence of the f 15 and the dogfight between them and mitsubishi zero be just plain fun ( from a modern day american perspective ) . someone say that they be the best shot of an f 15 in action prior to top gun . ever since i be a youngster and i wonder what would happen if you could transport a battleship or aircraft carrier back to say and the revolutionary war era . final countdown come about as close to play with that idea a i expect to see .