In the 3rd film Hiccup & Astrid fight a new villain out to destroy dragons & then decide they must take them to a hidden land for safety.
How to Train Your Dragon: The Hidden World (2019)
Gods of Egypt (2016)
Horus partners with the human Bek to win back his kingdom from the evil Set, and Bek needs help in reaching his beloved in the underworld as she nears judgment.