Season 4 Ep... — Cold Opendragons: The Nine Realms :

Thunder outsmarts him, leading to a chase that results in a massive rockfall of crystals.

Season 4 of Dragons: The Nine Realms kicks off with "Cold Open," an episode that literally and figuratively chills the Dragon Riders as they venture into the frosty new Ice Realm . A Frosty New Discovery

This premiere effectively raises the stakes for Season 4. It establishes Buzzsaw as a persistent, season-long threat and introduces environmental hazards like "snowcanoes" and blizzards that will push the Riders to their limits in upcoming episodes. The Nine Realms, Season 4 | How to Train Your Dragon Wiki Cold OpenDragons: The Nine Realms : Season 4 Ep...

Breaking the Ice: A Closer Look at Dragons: The Nine Realms Season 4, Episode 1

Though trapped for a moment, the Riders are saved by Jun, Eugene, and D’Angelo, while Buzzsaw makes a narrow escape, promising that their conflict is far from over. Themes of Obsession Thunder outsmarts him, leading to a chase that

While the human Riders are quickly fooled by his sob story, the dragons—led by Thunder—aren't as easily convinced. The tension peaks when:

The episode opens with the Riders stumbling upon the entrance to the Ice Realm, a stark departure from the fiery and crystalline environments we’ve seen previously. While the group is eager to explore this "brand-new, frosty" world, the icy terrain brings more than just cold weather—it brings back a familiar face with a dangerous agenda. The Return of Buzzsaw It establishes Buzzsaw as a persistent, season-long threat

The highlight of "Cold Open" is the return of Leonard "Buzzsaw" Burne (voiced by Haley Joel Osment). In a classic "Wounded Gazelle Gambit," Buzzsaw disguises himself as an injured hiker who supposedly fell into the realm by accident.