At the Racer homestead, Pops watches TV and learns that Speed is entering the Trans-Country Race.
Now, Pops blows a gasket and has a remembrance of the time his oldest son, Rex, entered and joined a race without any permission from him.
Mr. Wiley suggests Mr. Fixer and the Alpha Team driver Zoomer Slick to pull the dirty tricks first.
With determination to beat the Masked Racer, Speed sneaks out in the middle of the night and goes to the track.
Speed mysteriously crashes when an unknown person cuts a rope, causing a cascade of logs to block the track.
On the track, Spritle hears Fixer give his thugs the order to fill the Masked Racer's radiator with gasoline.
Guarded by Blaggard's men, Speed heads to Misty Valley using his Mach 5 where the $1,000,000,000 is located at.
The next day, Blaggard's thugs enters a lodge with Lana, a Misty Valley native, who is really Trixie in disguise.
After a day of training, Speed meets Rock Force, who outmaneuvers some gangsters by driving his car on two wheels.
While Pops fixes the car, Speed challenges him to drive the Mach 5 with its manual transmission to help "wake up" his right arm.
The next day Mr. Force wins the Snake Track race, but the gangsters come forward and reveal that he cannot use his right arm.
After being warned about it from Spritle, Speed is able to defuse the bomb in time and discovers a plot to blow up the President's speech by the assassins.
In Hawaii, a gang of crooks have captured top-secret plans for a new weapon: a tank with a laser device.
Speed discovers that a former racing driver Gadge Zoomer has taken to car wrestling (demolition derbies) to support his family.
A consortium of international criminals tricks Speed Racer and the Car Acrobatic Team (though seen a few times during flashbacks, the team is minus Snake Oiler, either dead or still injured as a result of his crash in "The Most Dangerous Race") into a dangerous grudge race; this in order to destroy them and also smoke out Racer X, a.k.a.
Racer X barely escapes an assassination attempt and warns Speed and the Car Acrobatic Team, that whose vehicles have been rigged with explosives.
The Car Acrobats turn the tables on the gang, while Speed gets a surprising reaction when he finally inquires as to Racer X's true identity.