Prim directive

"Tells the story of James Kirk, commander of the Enterprise, who struggles to regain his reputation and command of his spacecraft after his apparent violation of the interplanetary federation's most important law."
"Starfleet's most sacred commandment has been violated. Its most honored captain is in disgrace, its most celebrated starship in pieces, and the crew of that ship scattered among the thousand worlds of the Federation ... Thus begins "Prime Directive", an epic tale of the "Star Trek" universe. Following in the bestselling tradition of "Spock's world" and "The lost years", Judith and Garfield Reeves-Stevens have crafted a thrilling tale of mystery and wonder, a novel that takes the Star Trak characters from the depths of despair into an electrifying new adventure that spans the galaxy."@en
"The Federation's prime directive prohibits any contact with primitive worlds, but Kirk and his crew attempt to help Talin IV, a planet threatened with nuclear war. When the mission fails, Kirk becomes an outcast, Spock is demoted to ensign, Uhura is jailed, and McCoy resigns."
"Going against the Federation's prime directive, the Enterprise's crew is reprimanded when their aid to a planet fails."