Three hundred years ago, Frost Giants cursed the dragons, stripping them of their forms. Edmund, the only one who can still transform, seeks to break the curse through an arranged marriage—only to be publicly humiliated. King Carn offers Princess Alicia instead. From mutual disdain, they grow to love each other. Together they battle the bastard prince James and Frost Prince Haakon, who seek to resurrect the Frost King. In the final clash, Edmund transforms into a black dragon and defeats the Frost King. Their love shatters the curse, and dragons soar again.
Dusty Star House
You can watch The Invincible Dragon online on Runotoon, in the web browser on your phone or computer. There is no app to download. Start with Episode 1.
The first 10 episodes are free, and you don’t need an account to start. Each of the other episodes unlocks with 15 Coins. A new free account comes with 75 Coins, you can collect free Coins every day, and Runotoon Pass adds Coins every week.
The Invincible Dragon has 43 episodes on Runotoon so far, and new episodes are still coming. Together they run about 95 minutes. The latest episode came out on October 18, 2026.
Three hundred years ago, Frost Giants cursed the dragons, stripping them of their forms. Edmund, the only one who can still transform, seeks to break the curse through an arranged marriage—only to be publicly humiliated. King Carn offers Princess Alicia instead. From mutual disdain, they grow to love each other. Together they battle the bastard prince James and Frost Prince Haakon, who seek to resurrect the Frost King. In the final clash, Edmund transforms into a black dragon and defeats the Frost King. Their love shatters the curse, and dragons soar again.
Yes. Its original language is English, and it has subtitles in German, Spanish, Filipino, French, Indonesian, Italian, Brazilian Portuguese, Thai, and Vietnamese. Some languages may not cover every episode yet.
