Star Trek IV: The Voyage Home

Fugitives of the Federation to their daring rescue of Spock in the doomed Genesis World, Admiral Kirk (William Shatner) and his team start their trip home to face prosecution for their own actions. But as they close Earth, they discover it in the mercy of a mysterious alien existence whose signs are destroying Earth. In a desperate effort to answer the telephone of this probe, Kirk and his team race back into the late twentieth century. But they soon discover the planet they once understood to be much more alien than anything they have encountered in the far reaches of the galaxy!