A hapless young Viking who aspires to hunt dragons becomes the unlikely friend of a young dragon himself, and learns there may be more to the creatures than he assumed.
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.
King Leonidas of Sparta and a force of 300 men fight the Persians at Thermopylae in 480 B.C.
When the network of satellites designed to control the global climate starts to attack Earth, it's a race against the clock for its creator to uncover the real threat before a worldwide Geostorm wipes out everything and everyone.