How to Train Your Dragon: The Hidden World

The film opens with Hiccup and Toothless stealthily infiltrating a dragon trapper ship, joined by their friends Astrid, Snotlout, Fishlegs, Ruffnut, and Tuffnut. They aim to rescue captured dragons, showcasing their bravery and teamwork as they navigate the dangers of the ship.

Upon returning to Berk, the Dragon Riders find the village swarming with rescued dragons, leading to unexpected chaos. Hiccup, now a leader, struggles with his inadequacy compared to his late father, Stoick, amidst the uproar caused by the new dragon additions.

In Berk, Gobber encourages Hiccup and Astrid to get married, presenting a new layer of pressure on them as they both feel unprepared for such a commitment. They share a moment of reflection about their relationship and the responsibilities that come with leadership.

The tranquility of Berk is shattered with the arrival of the notorious dragon slayer, Grimmel the Grisly. Upon learning that Hiccup is still alive, he devises a cunning plan to capture Toothless using a white Night Fury as bait.

A flashback reveals a young Hiccup and Stoick discussing legends of a hidden world of dragons. Stoick expresses his dream of finding this world to end the long-standing conflict between vikings and dragons, showcasing the deep bond between father and son.

Toothless ventures out one night and encounters the elusive Light Fury, forming an instant connection. His clumsy attempts to impress her demonstrate his heartfelt intentions, adding a humorous yet heartfelt element to the narrative.

As Grimmel sets his traps and begins hunting Hiccup and Toothless, he invades their home and demands Toothless in exchange for peace. This incursion leads to chaos as Grimmel’s Deathgrippers wreak havoc, making the villagers doubt their safety in Berk.

Hiccup and his friends seek refuge on a different island, hoping for safety. During this time, the beautiful Light Fury appears but disappears, misunderstanding the situation, which creates tension and excitement in Hiccup's quest to build a bond for Toothless.

Hiccup's crew attempts to confront Grimmel but falls into his trap, leading to a narrow escape thanks to quick thinking. However, the escape comes at a cost, as they inadvertently leave Ruffnut behind, adding urgency to their mission.

With Grimmel on their tail, Hiccup and Astrid embark on a desperate journey to locate Toothless. They discover a breathtaking hidden dragon world, where Hiccup realizes that dragons should live far from humans to truly thrive.

Grimmel launches a full-scale attack on Berk, successfully capturing Toothless and the Light Fury while intimidating the remaining dragons. Hiccup feels a deep sense of defeat as he grapples with his inability to protect his loved ones during this tumultuous time.

Encouraged by Astrid, who remains steadfast in her belief in him, Hiccup gathers the villagers to confront the threat posed by Grimmel. This moment signifies a renewed hope and determination as they prepare for a fierce battle to rescue their dragons.

In the climactic battle, the Berkians unleash their united strength to free their dragons from Grimmel's grasp. Hiccup confronts Grimmel directly, leading to a dramatic sequence where Toothless's strength plays a crucial role in their escape.

After a hard-fought battle, Hiccup faces the heart-wrenching reality of letting Toothless go. In an emotional farewell, they embrace, knowing their destinies now lie apart, marking a bittersweet yet necessary moment for both the dragon and his rider.

Years later, Hiccup and Astrid are happily married and leading the village as chief and chieftess. On a family boat trip to the hidden world, they spot Toothless and the Light Fury, who now has hatchlings, culminating in a joyful reunion between old friends.