After Dusty Rhodes is injured, Mr. McMahon recruits Shaggy and Scooby to assist The Undertaker in the race to unmask the demon.
The story centers on the "WWE Muscle Moto Off-Road Challenge," a fictional three-day racing event featuring custom high-tech rigs driven by WWE Superstars. The Mystery Inc. gang attends as spectators, but the event is quickly jeopardized by a supernatural entity known as , a ghostly demon driver determined to sabotage the race. Scooby-Doo! and WWE: Curse of the Speed Demon
Velma investigates the history of Marauders Mountain, while the team navigates increasingly dangerous tracks. After Dusty Rhodes is injured, Mr
The climax reveals that Inferno was actually Triple H and Stephanie McMahon using advanced radio technology to control the vehicle and secure a million-dollar prize. Featured WWE Superstars The Mystery Inc
Inferno uses a mechanical rig with a scorpion tail to crash competitors, specifically targeting the "Legendmobile" driven by Dusty Rhodes and The Undertaker.