Star Trek VI: The Undiscovered Country 4K 1991

After the explosion of Praxis, one of the moons of Kronos, which destroyed almost all of the Klingons' livelihoods, the conflict between the Federation and the Klingon Empire ended. It's time for peace talks, but as it turns out, not everyone wants peace - some are satisfied with unceasing war.

Kirk and his loyal crew, already "five minutes retired," are given the secret assignment to conduct the first, preparatory round of peace talks with the Chancellor of the Klingon Empire. But the unexpected happens--the Klingon ship is attacked, the Chancellor is killed, the negotiations are disrupted, and the Enterprise, specifically Captain Kirk and Dr. McCoy, are blamed for the atrocity.

While the top Federation officials ponder what to do, the Klingon court sentences them to imprisonment on a detached, ice-covered asteroid. But they don't give up hope--because they are Starfleet officers, and because Kirk has a mission--he has long guessed that this is a plot to derail the peace talks, and gradually he begins to uncover it.

Meanwhile, the Enterprise, commanded by Spock, secretly flies to their rescue...