Mr. Link recruits explorer Sir Lionel Frost to help find his long-lost relatives in the fabled valley of Shangri-La. Along with adventurer Adelina Fortnight, this trio of explorers travel the world to help their new friend.

As the village of Berk prepares for its winter holiday, the resident dragons all inexplicably fly away.

On a post-apocalyptic Earth, an angel descends to help the survivors.