Ep. 42: Speed competes in the Pineapple Grand Prix in South America while criminals hunt for a hidden diamond.
Aired on January 21, 1968

Speed participates in the Pineapple Grand Prix, a race held in South America where drivers must transport a pineapple inside their vehicles. A diamond has been concealed within one of these fruits, prompting criminals to steal the pineapples from the competitors. This dangerous situation forces Speed to navigate the race while dealing with the threat of theft and the pursuit of those seeking the valuable gem hidden among the produce.
Episodes
- Ep. 38 · Speed discovers a bomb in the Mach 5 after an assassination attempt on Princess Gracious.
- Ep. 39 · Speed Fakes Death After Assassins Push Him Off a Cliff
- Ep. 40 · Speed and companions hijacked by Mark Meglaton who plans global missile attacks.
- Ep. 41 · A man builds a metal forest from melted cars to avenge his son's alleged injury
- Ep. 42 · Speed competes in the Pineapple Grand Prix in South America while criminals hunt for a hidden diamond.
- Ep. 43 · Speed becomes Princess Pedal's bodyguard in Hong Kong after witnessing two murders
- Ep. 44 · Speed faces a laser tank test by gangsters who stole secret weapon plans in Hawaii.
- Ep. 45 · Speed enters a demolition derby to persuade former racer Gadge Zoomer to quit car wrestling.
- Ep. 46 · Speed assists Skyhigh in protecting uraniumtane shipments from motorcycle Apaches in the American West.