Ep. 20: Oriena Flux seeks the GRX engine while Pops confronts her about its dangerous past.
Aired on August 13, 1967
Oriena Flux and her henchmen locate the GRX engine to secure victory in the Oriental Grand Prix. Pops identifies the engine's sound and warns Speed to stay away. He then takes Spritle and Chim-Chim to a cemetery to investigate the buried engine before confronting Oriena at her home. Pops demands the engine to destroy it, as he intended to do 10 years ago when it was created. Speed, wanting to understand the vehicle to defeat it in the race, decides to drive it. Although the high speed initially thrills him, the intense physical stress overwhelms him, causing him to lose consciousness while driving.
Episodes
- Ep. 16 · Speed Racer Invited to Kapetapek's Volcanic Underground Race Amid Political Tensions
- Ep. 17 · Speed races in Kapecapek while Racer X reveals his true identity as Kabala
- Ep. 18 · Speed and Trixie attempt to rescue Twinkle Banks during a dangerous stunt over Niagara Falls.
- Ep. 19 · Speed and Twinkle confront Cornpone Brotch at his Mount Rushmore hideout.
- Ep. 20 · Oriena Flux seeks the GRX engine while Pops confronts her about its dangerous past.
- Ep. 21 · Pops rescues Speed from Oriena's gas-enhanced test drive and helps him overcome his fear of speed.
- Ep. 22 · Dr. Nightcall and daughter steal the Mizmo Beam to build a flying Mach 5 with an atom bomb for Cumulus.
- Ep. 23 · Speed confronts Cumulus at his underwater base, leading to a fatal confrontation involving Dr. Nightcall's daughter.
- Ep. 24 · Prince Jam and Spritle collide during a youth race after a kidnapping plot