The leader of the dragon riders, Hiccup, has a difficult task ahead of him: a cruel dragon hunter named Grimchuck will stop at nothing to capture Toothless. While Hiccup is deciding whether it's time to leave Burke for good so that dragons and humans can live in safety, Toothless has his mind on something else (or someone). He's met Daylight Fury, and now he can't think of anyone but her.
