Hiccup is a Viking teenager who aspires to hunt dragons, but doesn't exactly fit in with his tribe's longstanding tradition of heroic dragon slayers. His world gets turned upside down when he encounters a dragon that challenges him and his fellow Vikings to see the world from an entirely different point of view.

Now chief and ruler of Berk alongside Astrid, Hiccup has created a gloriously chaotic dragon utopia. When the sudden appearance of a female of Toothless' kind coincides with the darkest threat their village has ever faced, man and dragon must leave the only home they've known, and journey to a hidden world thought only to exist in myth. As their true destinies are revealed, dragons and riders will fight together to protect everything they've grown...

A lighthearted story that follow the adventures of a brave young boy who, emboldened by tales of brave knights, decides to pursue the horrible dragon this is terrifying the villagers. But what he discovers is a surprisingly friendly dragon that is more interested in reciting poetry and making music than devouring fair damsels. Now the young boy will have to stop the local hero before he challenges the dragon to a fiery battle.