In search of a key to unlock a box from her late mother, Clara finds her way into a mysterious parallel world. She teams up with a soldier named Philip in order to brave the Fourth Realm to find the key and return harmony to the unstable world.

Now chief and ruler of Berk alongside Astrid, Hiccup has created a gloriously chaotic dragon utopia. When the sudden appearance of female Light Fury coincides with the darkest threat their village has ever faced, Hiccup and Toothless must leave the only home they've known, and journey to a hidden world thought only to exist in myth. As their true destinies are revealed, dragon and rider will fight together to protect everything they've grown to treasure....

Get ready for a BIG adventure, BIG rescues, and BIG trucks! Launching from their new Truck Stop HQ, Ryder, the pups, and their new pup-friend Al will take their brand-new Big Trucks out on the road to save the day. The pups team up with Al to save the Adventure Bay Bridge and also stop a flood, plus so much more! Bigger rescues call for bigger rides and a new friend!

"A Brooklyn plumber named Mario travels through the Mushroom Kingdom with a princess named Peach and an anthropomorphic mushroom named Toad to find Mario's brother, Luigi, and to save the world from a ruthless fire-breathing Koopa named Bowser." --