The Enterprise is the first to test an engine system that transcends warp drive. The Klingons attempt to thwart the test, but a greater danger looms when time becomes meaningless.
A routine diplomatic visit to the water-world of Akkalla becomes a nightmarish search for a missing Spock and Chekov. The search plunges Admiral Kirk into a corrupt government's desperate struggle to retain power.
The Enterprise is suddenly hurled millions of light-years through space into the middle of an endless interstellar war. Under attack by both sides, Kirk attempts to stop the war.
