When Hiccup and Toothless discover an ice cave that is home to hundreds of new wild dragons and the mysterious Dragon Rider, the two friends find themselves at the center of a battle to protect the peace.

While a zombie virus breaks out in South Korea, passengers struggle to survive on the train from Seoul to Busan.

When Hiccup discovers Toothless isn't the only Night Fury, he must seek "The Hidden World", a secret Dragon Utopia before a hired tyrant named Grimmel finds it first.

Tony Towers is a local celebrity, a successful nightclub manager and he is engaged to a younger woman, Sue. Things get a little strange when he embarks upon the 3:17 to Nottingham for a Christmas family reunion.

In Barcelona, secret agent Antoine Donadieu thwarts the plans of a Nazi scientist.