There is something beautifully perverse about taking a beloved fantasy universe built around balance, spiritual harmony and the possibility that even your worst enemy might have a little goodness rattling around inside them, then blowing the whole damn thing to pieces and asking what happens next. Welcome to Avatar: Seven Havens, where the world has been pulverized, civilization has retreated behind protective walls, and the very idea of an Avatar inspires the sort of public terror usually reserved for plague ships and unasked for baked goods from an elderly neighbor.

After more than a decade away from a proper animated sequel series, creators Michael Dante DiMartino and Bryan Konietzko have returned with a franchise shake-up that feels genuinely dangerous, at least by the standards of a corporate entertainment empire whose every property is expected to reproduce itself forever. Here, the world has actually changed, and the change hurts.

Set more than two centuries after The Legend of Korra, Seven Havens introduces Pavi (Saheli Khan), a young Earthbender who discovers she is the new Avatar in a society that regards the title as a warning siren. A cataclysm has devastated the planet, and Korra has become the convenient villain in the historical story people tell themselves about how it happened. The new Avatar is therefore a walking political crisis, a kid with a cosmic job description and a target painted across her forehead. Pavi’s search for answers intersects with the discovery of her twin sister, Nisha (Aishu Devan), while airbender Jae and the enigmatic Karthik become entangled in the effort to keep the girls alive. Beneath the elemental combat and fantasy machinery, the show is chewing on a nastier question: what happens when a frightened society decides that the person meant to save it is the thing it needs saving from?

That premise has teeth. The old Avatar world has been replaced by a landscape of storm-ravaged deserts, fortified settlements and communities organized around survival, and the first Haven, Ellora, is a terrific piece of world-building. French studio La Chouette Compagnie brings a new visual vocabulary to the franchise, with crisp outlines, flat colors and a strange, open-air quality that gives the setting a graphic, almost dreamlike strangeness. The influence of artist Moebius hangs over the scenery, while Jeremy Zuckerman’s synth-heavy score pushes the atmosphere toward science fiction. Some of the animation lacks the fluidity and kinetic punch that made the earlier shows so exhilarating, and the action can become muddy when the bodies start flying. The art direction, however, gives this battered civilization a personality of its own. You want to wander through it, poke at its mysteries and find out what everyone is hiding.

The real nerve of the series lies in its treatment of history. Korra’s reputation has been dragged through the mud, bending has been pulled into systems of registration and conscription, and the public has developed a collective appetite for scapegoats. The show’s premise has obvious resonance in a world where complicated events are reduced to propaganda and old grievances become political weapons. It also gives the franchise’s mythology a wonderfully destabilizing jolt: fans who spent years with Korra must now reckon with a future that remembers her as a catastrophe. The mystery surrounding that transformation is one of the series’ strongest engines, and the show wisely leaves room for the possibility that the official version of history is a gigantic crock of garbage.

Pavi and Nisha provide the emotional voltage. Their separation and uncertain shared past give the story an intimate center amid all the apocalypse-sized machinery, while their differing temperaments create room for friction, tenderness and the kind of sibling chemistry that can make a sprawling fantasy feel human. The series has plenty of plates spinning—political repression, lost history, the Avatar cycle, a ruined world and a crowded supporting cast—and the early episodes occasionally struggle to make every piece click. The humor can puncture danger before the danger has properly registered, and the action sometimes lacks the clarity needed to make a fight feel consequential. The show’s ambitions are enormous, and its execution hasn’t always caught up with them.

Still, there is real guts in Seven Havens. The franchise has spent years building a mythology around balance, and now it is asking what balance means when the institutions, histories and heroes people rely on have become objects of suspicion. That is fertile territory for a fantasy adventure, especially one aimed at young viewers who are perfectly capable of recognizing hypocrisy, fear and the way power dresses its prejudices in the language of public safety. The show may need to sharpen its action and trust its quieter moments, but its central mystery has the juice to sustain a long journey.

The Avatar has returned to a world that doesn’t want her, and the world has never looked stranger. Let the kid bend some elements, ask some dangerous questions and start breaking the machinery of fear. There are seven Havens out there, and a whole lot of trouble waiting beyond the walls.