We have to travel to the future so we can save the past by traveling to the past and then the future and then we need to kill the aliens in the future so we can kill the aliens in the past and then go to the future to kill the aliens that were in the past so that we dont have to worry about them in the future where we have to kill them because they almost kill us in the future but we kill them in the past and then we go to russia or something and then we blow the past up so that in the future there are no aliens and then we go back in time to the future war past time to alien kill shoot alien