As the son of a Viking leader on the cusp of manhood, shy Hiccup Horrendous Haddock III faces a rite of passage: he must kill a dragon to prove his warrior mettle. But after downing a feared dragon, he realizes that he no longer wants to destroy it, and instead befriends the beast – which he names Toothless – much to the chagrin of his warrior father

Teaming up for the first time for a special episode of a supernatural reality TV show, two rival crews get more then they bargained for when they make physical contact with a ferocious spirit of terrifying power. They must band together before it destroys them all. After 49 killer episodes…this is the true story of what happened on episode 50.