Storyline:
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.

Cast:

William Shatner Kirk

Leonard Nimoy Spock

DeForest Kelley McCoy

James Doohan Scotty

Walter Koenig Chekov