Leaving a race Speed has just won Speed and Trixie are shot at by Omar's men. Arriving in Hawaii Spittle and Chim Chim get involved in an another attack by Omar's men. Speed figures out that he and Trixie were not the real targets the first time but they were given something in Hawaii that has made them targets. Speed examines the lay given to him by a girl and discovers some microfilm. Taking it to the library he finds out that the film are the plans for a new laser gun and is saved by the Kana from more of Omar's men. Kana is captured by Omar's men and taken to an island on which they are building the laser gun. Spittle and Chim Chim are captured. They all escape when Omar tries to test the gun on them. They then have to escape a laser tank Speed Racer disables the tank with the homing robot. The tank and island then blow up. Trixie says that they still have time to make Speed's next race.
Cai nas mãos de Speed Racer o microfilme do projeto de uma poderosa arma laser, mas uma quadrilha se apodera do projeto e o coloca em um tanque. Guiando seu Mach 5, Speed detona a aberração cibernética.
ハワイに向かうため空港に到着した剛とミッチーは、居合わせた見知らぬ男と少女への狙撃事件に巻き込まれる。無事にハワイに到着した剛たちだが、今度は先ほどの男が殺害されているのを発見し…。
