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The future? The Earth is dying under the onslaught of industry, the polar caps are melting, the ozone layer is nearly destroyed - To save the planet, the Doctor must overcome the combined forces of some of the most feared of his old adversaries. But he must also confront a far greater enemy - one that has already reverted him to his Fourth Incarnation - in order to save both the past and future Doctors before they are taken out of time and cease to exist.

How to Watch Doctor Who: Lost in the Dark Dimension Legally and Safely

If you want to stream Doctor Who: Lost in the Dark Dimension through reputable and legal services, there are a few good options depending on where you are. Subscription platforms like HBO Max, Disney+, Netflix, Amazon Prime Video, and Apple TV+ sometimes carry Doctor Who: Lost in the Dark Dimension films or related DC titles—though availability depends on your country.

If you’d rather not commit to a subscription, there are ad‑supported, free (but legal) platforms such as Tubi, Pluto TV, Peacock or Crackle (where available in your region) that occasionally host superhero films.

Lastly, don’t forget about library‑linked streaming options like Kanopy or Hoopla (if your library or university is registered), and official uploads by film distributors on YouTube—these can also give you legal access to classic movies.