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Mary Surratt was the only woman convicted in Lincoln's assassination, the first female to be executed by the U.S. government and now the basis for Robert Redford's The Conspirator. Just days before the feature film hits theaters, NGC presents a complementary documentary on her role in the 16th president's death. The Plot to Kill Lincoln: The Conspirator weaves together excerpts from the movie with historical records and expert interviews to tell the dramatic story.

How to Watch National Geographic: The Conspirator - The Plot to Kill Lincoln Legally and Safely

If you want to stream National Geographic: The Conspirator - The Plot to Kill Lincoln 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 National Geographic: The Conspirator - The Plot to Kill Lincoln 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.