The Trial of a Time Lord, Part Twelve (Terror of the Vervoids)

The Vervoids overhear what is planned for them and begin their attempt to prevent it from happening. The ship starts to head towards a black hole and in the attempt to save it, the ship ends up being hijacked adding to the already existing problems. The Doctor then assists the crew in saving their ship and in the process ends up being charged with a more serious charge in the Time Lords trial.