A group of Russian musicians struggles from gig to gig in South Texas until one of them ditches the group to attempt a marriage with a wealthy farmer on his ranch. The story is inspired and is loosely based on 'Ionych', a novella by Anton Chekhov.
As Hiccup fulfills his dream of creating a peaceful dragon utopia, Toothless’ discovery of an untamed, elusive mate draws the Night Fury away. When danger mounts at home and Hiccup’s reign as village chief is tested, both dragon and rider must make impossible decisions to save their kind.