6 episodes 89%4KCC

Unexplained weapons, secret plots, and wartime mysteries emerge from the shadows.

Explore the strangest side of military history through mysterious sightings, bizarre experimental weapons, conspiracies, and coverups from the World Wars. From U-boats and glowing spheres to secret missions and hidden agendas, each story opens new questions and unexpected connections. Sign up to uncover the unsettling evidence and decide what to believe.

Episode guide

6 episodes

1Secrets from the Deep

Dive into tales of a strange Japanese balloon bomb, mysterious U-boat sightings and deep-sea anomalies that surfaced during the world wars. These weird wartime encounters challenge the boundaries of logic and history with every eerie detail.

47 min

2Glowing Orbs and Bat Bombs

Did WWII pilots really witness glowing orbs in the night sky? Could bat bombs have changed the course of the war? Explore otherworldly sightings and explosive experiments that blur the line between science, fear and folklore.

50 min

3Stalin's Dogs & Nazi Gold

Explore WWII's oddest military experiments, from Stalin's canine commandos and Rommel's buried Nazi treasure to unexplained aerial circles reported by RAF pilots. These are the forgotten footnotes of history that defy belief.

50 min

4Zombie Spies & Plague Plots

Dive into deeply unsettling wartime legends: from Stalin's rumored attempts to create human-ape hybrids to reports of Nazi zombie spies and a strange plague that surfaced decades later.

50 min

5Ghost Armies & Vanished Icons

This eerie installment of weird wartime mysteries and military deception includes Stalin's obsession with flying saucers, a ghost army built to fool Hitler, and the mysterious disappearance of bandleader Glenn Miller.

50 min

6Magicians, Spies & UFOs

Magicians joining the war effort, a double agent who deceived Hitler and strange UFO sightings over Canada? These bizarre stories prove that our world wars were even weirder than we were taught in school.

49 min

Good to know

Frequently asked questions

Thousands of the world's best documentaries and factual programming — nature, history, science, technology, and biography — including exclusive Curiosity Originals like World War Weird. Stream it all ad-free, anytime.

Plans are billed annually — every plan streams in 4K. The Smart Bundle adds four partner services. There are no contracts — cancel anytime.

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.

Yes. The library is full of family-friendly nature and science programming, and the Smart Bundle includes Kidstream — carefully chosen, ad-free shows kids will love and parents can trust.

Absolutely. There are no contracts and no cancellation fees — manage or cancel your plan anytime from your account settings.

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.

Yes. Start on any plan and move up to the Smart Bundle whenever you like — the change takes effect right away, and your billing is simply prorated from your account settings.

Got your answer? Pick a plan and start streaming.Start streaming

Available now

Start watching World War Weird today

Stream thousands of award-winning documentaries. Cancel anytime.

Start streaming