The crew of the Nautilus,a battered Starship of mysterious origin, is beamed aboard the Starship Enterprise™.The group claims they are freedom fighters from the future working to save the Federation from the Consilium -- a group of corrupt power-seekers.

But when the Nautiluscrew members suddenly seize control of the U.S.S. Enterprise™,and a Starship from the future arrives to arrest the renegades, Kirk must separate his true allies from those who wish to destroy the Federation.