Where tiny turning points reshape empires, wars, and the fate of nations.
Explore the decisive moments when history could have gone another way, from World War II battlefields to ancient rivalries, colonial conflicts, and great voyages of discovery. Through vivid 3D reconstructions and counterfactual analysis, this season reveals how a single event can redirect the future. Sign up to experience history as a chain of choices with world-changing consequences.
Episode guide
13 episodes- New shows weeklyFresh documentaries land every week.
- Exclusive originalsAward-winning films you can’t stream anywhere else.
- Watch anywherePhone, tablet, web and TV — pick up where you left off.
- No commitmentNo contract. Cancel in a click.
Frequently asked questions
Thousands of the world's best documentaries and factual programming — nature, history, science, technology, and biography — including exclusive Curiosity Originals like Butterfly Effect (Season 3). Stream it all ad-free, anytime.
Butterfly Effect (Season 3) streams with every plan.
Watch on the web, iOS and Android, Roku, Apple TV, Amazon Fire TV, Chromecast, Android TV, and most smart TVs. Start on one device and pick up right where you left off on another.
Curiosity Stream is our streaming service — thousands of documentaries and originals. The Smart Bundle is Curiosity Stream plus four other independent streaming services (Tastemade, Kidstream, Curiosity University, and SOMM TV) on a single subscription.