Amid the rugged grandeur of the Vercors Mountains, where sun-kissed peaks dance with the chilly caresses of the evening breeze, the Ardèche River weaves its way, an ethereal ribbon of life. The serenade of crickets and nocturnal birds fill the stillness, their songs intertwining seamlessly with the gentle flows of the river.

In the heart of this Natural Reserve, a humble shepherd, Elian, tends to his flock, cradling stories of old, his dreams floating above the pristine waters. He believes his land possesses a secret, an enigma lurking somewhere amongst the ancient boulders and the verdant pastures. One night, as the silver moon bathes the valley in its gentle light, Elian notices a phantom glint, pulsating in the belly of the mountain range.

Suddenly, the tranquil scene is shattered by a cavernous roar! Unseen forces begin to awaken from the depths of the mountain, revealing the long-hidden truth: a dragon, sleeping beneath the majestic peaks, had been stirred, its thirst for power unearthed by the encroaching development of human civilization. With newfound determination, Elian, together with the creatures of the valley, rallies to unite the legacy of the Vercors with the spirit of the River Ardèche, as they embark on an epic journey to protect their land and preserve the harmony within the realm of the enchanted mountains.