After literally falling into Knuckles' trap, Sonic and Tails plummet into the Hydrocity Zone. The submerged ruins are no place for a hedgehog, but Sonic is determined to race his way out of the zone and back to dry land...

Featuring the official voice talents of:
Ryan Drummond - Sonic the Hedgehog
William Corkery - Miles "Tails" Prower
Scott Dreier - Knuckles the Echidna
Deem Bristow - Dr. Ivo Robotnik