Millennium

Time-hoppers from the future, led by Louise Baltimore, are abducting airline passengers about to crash, and transporting them a millennium hence in order to reseed a future blighted by environmental disaster. This is a dangerous business, plagued by the specter of accidentally creating time paradoxes, which could throw the future out of whack. Unfortunately, they've lost a couple of the stunners they use to subdue troublesome passengers, and these fall into the hands of a curious physicist and an investigator for the National Transportation Safety Board. Louise Baltimore must retrieve these devices before a time paradox wipes out her world, but manages to complicate things by developing a romance with Bill Smith...