An alien scientist invents the Intergalactic Inversion Drive, an engine system that transcends warp drive - and the "USS Enterprise" will be the first to test it! The Klingons attempt to thwart the test, but a greater danger looms when strange symptoms surface among the crew - and time becomes meaningless.
Now Captain Kirk and his friends face their greatest challenge - to repair the fabric of the universe before time is lost forever!
