Scooby-Doo! and WWE: Curse of the Speed Demon

Plot

After solving the Ghost Bear mystery, Mystery Inc. attends WWE's Muscle Moto X Off Road Challenge, an off-road race for WWE superstars with prize money. Scooby-Doo and Shaggy Rogers work at a food truck. WWE chairman Vince McMahon's daughter Stephanie and her husband Triple H are among the racers, and Scooby and Shaggy are excited that The Undertaker will compete. A demonic racer named Inferno sabotages the race.

McMahon hires Mystery Inc. to solve the mystery and tries to keep Stephanie out of the race, but she refuses. Daphne Blake befriends Stephanie after they bond over their wealthy patriarchs, leaving Velma feeling left out. The Undertaker, disappointed that his partner Dusty Rhodes was injured, recruits Shaggy and Scooby as partners under the names Skinny Man and Dead Meat; they reluctantly agree. Since Undertaker's car was destroyed, Fred Jones modifies the food truck into The Scoobinator.

During the first race, Inferno attacks, and Velma, Daphne and Fred notice McMahon is absent. That night, The Miz saves Scooby and Shaggy from Inferno. The next morning, Inferno attacks again, and Scooby, Shaggy and Undertaker nearly drown in The Scoobinator but escape. Daphne reassures Velma she will always be her best friend.

Fred modifies the Mystery Machine to replace The Scoobinator, and he, Daphne and Velma join as passengers. Inferno attacks again, and the other WWE stars gang up on him while Undertaker confronts the villain. The gang deduces Inferno uses radio technology to control his car, so they create a remote control that disrupts his signal and takes control of his vehicle.

Production

A direct follow-up to Scooby-Doo! WrestleMania Mystery was announced in September 2014 for a 2016 release. The title Scooby-Doo! and WWE: Curse of the Speed Demon was revealed in February 2016. Hulk Hogan was initially set for a major role, but after WWE terminated his contract in July 2015 over racist remarks, he was cut from the finished film.

This project is the final one for Dusty Rhodes, who recorded his voice part before passing away a year before the movie came out. It is the third joint effort between Warner Bros. Animation and WWE Studios. Ryan Shore, who scored the previous film, also composed the music here.