Even though Hiccup is the son of the Viking chief, he’s scrawny and not much good at Viking-type things. All the youths in the village have to catch dragons to train, but Hiccup only manages to get a tiny one, which he accurately names Toothless. Though Hiccup has taught himself to speak Dragonese, Toothless refuses to obey him, and eventually gets Hiccup and all the other boys banished from the village. That’s when they realize a monstrous Sea Dragon has washed up on their shore. It’s up to Hiccup and Toothless to defeat the Sea Dragon, save the village, and get themselves reinstated in the village, if they can only get along long enough to do it.