The following is a list of episodes of Speed Racer: The Next Generation. The series debuted on Nicktoons Network on May 2, 2008 and ended on August 25, 2013.
Speed arrives at the Racing Academy and meets all of the main cast. With no race car of his own, Conor lets him use a junky, spare one for the Qualifying Race, known as "LOST HERO". Having destroyed the car, his key, which was left to him by his mysterious father, glows, and leads him to find the Mach Five's hood disassembled from the other pieces of the car. Speed and his friends rebuild the Mach 5 and test it out. However, Annalise, under Zile's orders, destroys it in a match against X. Spritle reveals a shocking surprise to Speed; that he is Speed Racer's son and is X's long lost brother. Speed and his friends discover the secret plans to build the Mach 6 and its unique engine from the remains of the Mach 5. Speed uses the new car to race once again against Annalise, and wins.
Thanks to Joel the lab technician, Zile takes over the virtual track to mess up Speed's race at the Redwood Rally so he doesn't survive. After Speed suspects whats going on, he decides to investigate, but in the process, Speed, Annalise and the Mach 6 all get sucked into the virtual track. While Speed and Annalise are still stuck in the virtual track, they must put their differences aside to survive. Meanwhile, Conor, Lucy, and X must find a way to get them out before the track eats itself up due to the virus, or they'll be stuck there forever. Two vehicles from the original show- the Mammoth Car (from episodes 7 and 8) and the X3 make cameos in this episode. Speed and Annalise make it out of the track. Delighted, Zile finds out Joel installed the virus, and decides to promote him to make the track more deadly for Speed and the Mach 6. One thing Zile is not aware of is that the Mammoth Car, the X3, and Jungle Conor invade the real world to wreak more havoc. Meanwhile, the Jungle Conor kidnaps Annalise.
In this clip show showcasing the last 12 episodes, Speed must complete Professor Nguyen's assignment about what he learned since joining the academy.
Dickie Ranford challenges anyone who dares face him to a three-day race inside the virtual track, against his new eco-car, which will run on only one tank of gasoline for the entire run. Speed competes, as winning Ranford's industry will finally enable him to finish refining the Mach 6. Zile also participates, intending to beat Ranford at his game and crush the Mach 6. By the second day of the race, both the Mach 6 and Chim-Chim get smashed by a canyon avalanche overnight. Speed uses his wits to go forward by using the natural elements to their advantage. At first, they think Zile tricked them into going the wrong direction. But they soon discover that it was Ranford who caused the avalanche and wrecked their car... and that his Eco-car is only keeping the emissions building up inside the front hood and he is actually storing leaded gasoline in Ranford Cola bottles to use for later, proving him a complete fraud. Speed shares the secret of the eco-car to Zile, who reluctantly lets Speed pass ahead of him so he can beat Ranford for him. At the finish line, Speed wins first place, and Ranford's car breaks down, earning him last place, but costing him his secret, and his reputation. When Speed starts planning his future with the industry, the press shares that Ranford industries went bankrupt and that the only things left were 2500 desks, chairs, staplers and a six pack of Ranford cola.