Directed by Nicholas Meyer. With William Shatner, Leonard Nimoy, DeForest Kelley, James Doohan. On the eve of retirement, Kirk and McCoy are charged with assassinating the Klingon High Chancellor and imprisoned. The Enterprise crew must help them escape to thwart a conspiracy aimed at sabotaging the last best hope for peace.

Source: Star Trek VI: The Undiscovered Country (1991) – IMDb