Raised in a subterranean, state-of-the-art sanctuary called Multivus, sixteen-year-old Eva Nine has known only the company of her maternal robot caretaker, Muthr, and an erratic holographic database named Otto. Conditioned to believe that humanity is extinct and Earth is uninhabitable due to catastrophic ecological collapse, Eva’s sheltered existence shatters when a ruthless bounty hunter named Besteel breaches her bunker, murdering Muthr and forcing Eva to flee to the surface.Emerging into the blinding daylight for
the first time, Eva discovers a transformed, vibrant alien world now called Orbona, populated by bizarre fauna, floating islands, and fantastical sentient species. Desperate to find other humans and driven by a scrap of metal bearing a picture of a girl and the word "WondLa," Eva embarks on a perilous quest across the strange landscape. Along the way, she forms an unlikely
found family with Rovender, a grumpy, cynical, multi-limbed alien scholar wrestling with his own tragic past, and Otto, who escaped the bunker with her.As the trio journeys deeper into Orbona, Eva learns that her existence is no accident. She is hunted not just by Besteel, but by Lorica, a megalomaniacal tyrant queen determined to capture Eva to unlock ancient, god-like technology hidden within Multivus. Lorica seeks to control the planet’s remaining terraforming mechanisms to reshape Orbona in her own cruel image, viewing human genetics as the ultimate key to her dominion.The journey tests Eva’s resilience, forcing her to confront the harsh realities of survival, prejudice, and war among Orbona's diverse factions. She discovers that humanity is not entirely gone, but scattered and enslaved, and that her supposed sanctuary was merely a prison designed to keep her contained until she was mature enough to serve as a biological key.The climax converges on the grand floating citadel of Highspire, where Lorica launches an all-out assault to capture Eva. Rallying the disparate tribes of Orbona—who set aside their ancient rivalries—Eva, Rovender, and Otto lead a desperate resistance. In the ensuing chaotic battle, Eva taps into the dormant capabilities of her biological link to Multivus, turning the tide against the queen. Though Lorica is defeated and her regime dismantled, the victory is bittersweet. Orbona is scarred, and Besteel remains at large, stalking the shadows. Embracing her destiny as a beacon of hope, Eva accepts that she can no longer merely search for her past; she must actively forge a future for both humans and aliens alike, standing bravely at the dawn of a new era.