Vert and Kurt have teamed up and are now part of the street racers known as Teku. Meanwhile, Kurt's younger brother Mark and former Scorchers leader Taro are now part of the Metal Maniacs, who happen to be the main rivals of the Teku. A heated race between the two teams is cut short when Tezla calls on the help of his old World Race allies. It appears that Gelorum has returned. She has stolen the Wheel of Power and destroyed Highway 35 in the process. Tezla sends the racers, along with some of their new teammates, into the Racing Realms in hopes of retrieving the Wheel from Gelorum's clutches. They soon discover that the Racing Realms are unknown dimensions that are not only much more difficult than Highway 35, they're also very deadly. The situation isn't made any easier when Gelorum sends out her Racing Drones to destroy the Teku and Metal Maniacs.

Lani learns that Tezla has been purposely pitting the drivers who hate each other the most against one another in hopes of getting a stronger and more dedicated performance out of them. Meanwhile, Karma studies one of the Racing Drones and discovers their secret to dominating the Racing Realms.

The drivers enter the Neon Pipeline Realm where they have to master not only drafting, but also driving on the inside and outside of an elaborate network of pipes. The drivers discover the presence of the mysterious Silencerz team.

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