When a mysterious portal opens in the skies above Bygone Island, Sonic and his friends are sucked into a swirling vortex that transports them into a new dimension—the Omniverse. They find themselves in a chaotic, alien-filled world unlike anything they've ever seen, full of strange creatures and dangerous foes. To their surprise, they cross paths with Ben Tennyson, a young hero who wields the powerful Omnitrix, a device that allows him to transform into various alien forms.
