With a frightening vision of what's to come from Panna (the Kinda's blind visionary), the Doctor must break Hindle's control over the Kinda hostages and stop his deforestation plan, then send the Mara back to The Dark Places of the Inside from whence it came before it can destroy the Kinda and head out to topple civilizations.
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What is the one thing evil can not face? Not ever!
Featured in Whovians: The Pilot