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.

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.