Quick Answer
Thunder 3 is streaming on Netflix. 2 episodes (~1h total watch time). Availability may vary by region.
Where to Watch Thunder 3
Good news — Thunder 3 has official streams on Netflix. We've got links for all of them, along with fallback search options.
Confirmed Streaming Platforms
Subscription availability by JustWatch
Check Other Platforms
Anime licensing changes by region. If Thunder 3isn't on your usual service, try these.
About Thunder 3
Three ordinary schoolboys come into possession of a DVD that supposedly opens a gateway to a parallel universe, but when their backs are turned Pyontarou's little sister Futaba passes through and gets kidnapped by the aliens that have overrun that version of Earth! Discovering that their cartoonish bodies make them supermen in the hyper-realistic parallel universe, the boys set out to rescue Futaba. (Source: Kodansha USA)
Full details on MyAnimePulseFrequently Asked Questions
Where can I watch Thunder 3 legally?
Right now, Thunder 3 is on Netflix. That said, anime licensing varies a lot by country — what's on Netflix in Japan might not be on Netflix in the US. If your go-to platform doesn't have it, try the other services listed above.
Is Thunder 3 on Netflix or Crunchyroll?
It's on Netflix in at least some regions. Crunchyroll is worth checking too since they carry a huge anime library.
Is Thunder 3 available with an English dub?
Dub availability depends on the platform. Crunchyroll has been expanding their dubbed library a lot recently, and Funimation (now merged into Crunchyroll) historically had the biggest dub catalog. Check each platform's listing for Thunder 3.
Can I watch Thunder 3 for free?
Crunchyroll offers a free ad-supported tier for some shows. Most other platforms require a subscription, but many offer free trials for new users. Tubi and Pluto TV occasionally have anime in their free rotation too.