A collision with the Paradox Prism sends Sonic to a parallel world called New Yoke City, where the dull environment looks oddly familiar.

A power outage gives two rebels a chance to break into a lab where the Chaos Council is studying Sonic's strange connection to their energy source.

To secure the Prism Shard, the rebels battle the Chaos Council. Then Sonic makes a startling discovery about the events that shattered his world.

In a dimension called the Boscage Maze, Sonic runs into tree-dwelling versions of his friends who warn him of a monster that lives on the jungle floor.

To find his way back to the right dimension, Sonic must battle the jungle monster who waged war on his friends and capture the powerful Prism Shard.

Back in New Yoke, Sonic desperately tries to convince Nine to join the Resistance, but Nine is focused on building a brand-new home.

In the tropical No Place, Sonic meets a friendly band of pirates and their mysterious captain, who loves to party.

As Sonic's crew races to the Prism Shard, they quickly realize they're not the only ones after it. There's only one way to win — they gotta go fast!

Shadow ambushes Sonic in the void of the Shatterverse to confront his rival about the destruction of Green Hill — and take matters into his own hands.

With the Paradox Prism in his hands, Nine begins building the Grim into his own personal paradise — unless Sonic and Shadow can convince him otherwise.

Reality will cease to exist unless a selfless hero makes the ultimate sacrifice. But will it be enough to reverse the damage Nine caused to the universe?