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Watch Hidden Britain by Drone Season 2 Episode 2 online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.

In this episode Tony's drones reveal the mysterious workings of a sewage plant, a top-secret underground Cold War bunker, a super-sized luxury car emporium, and a collection of rusting sea-forts that were once a hideaway for pirates.