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Cat, a fugitive from a parallel Earth ruled by aliens, lands on "our" Earth in the middle of a freeway, causing an accident. She is slightly injured, and wakes up in the emergency room of a hospital, where Thomas, a doctor, takes care of her. The following day, Thomas goes back to the hospital and finds Cat's room vacant and all records wiped out. He discovers that the FBI is investigating Cat's origin, because she has brought a couple of strange artifacts. Thomas is trying to talk to her when she decides to escape. Thomas is forced by the events to follow and help her, all the while trying to understand her motives. It turns out that Cat is fleeing a group of servants of the Dark Lord. They hitch-hike to the nearest Doorway to another parallel world, but while they're waiting for the door to open, they're caught successively by FBI agents and Dark Lord goons. They barely escape through the door to an Earth where petrol has disappeared. Their adventures continue as they are still chased by the villains. At last, they stumble through another door and land on top of Mt Rushmore. But the four faces that are sculpted on it show that Thomas is clearly not back home yet.

How to Watch Doorways Legally and Safely

If you want to stream Doorways 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 Doorways 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.