Speed Racer: The Next Generation

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.

Speed takes advice from X on how to deal with the fame of being Speed Racer's son from his classmates. A crazy stalker student named Mitch spreads a rumor that Speed will have a rivalry race with his brother, X, which spirals into a real race. When Annalise sees X not taking this seriously, she stands up and sabotages Speed's car so X can win.

Speed and X must work together as a team in order to win a multi-school racing tournament. Meanwhile, Zile plans to ruin Speed and X's teamwork during the tournament and destroy the Mach 6.

Speed gradually receives mysterious notes signed by his father, but he suspects that they could be false. When he receives another letter asking for Speed to come meet him, Speed goes to figure out who the imposter is. Meanwhile, Zile plans to have his birthday party. At the end of the episode, Speed receives a real note from their father.

Speed Racer Sr. finally returns and reunites with his sons, however X is angry with him. The Mach 6 is stolen by Zile, and the Racer family works together to retrieve it and get Zile arrested. After getting back the Mach 6, Conor discovers a mysterious energy signal coming from the Mach 6, forcing the gang to investigate.

School is back in session at the Academy. However, the Mach 6 starts to exhibit new capabilities during a race.

Speed and his friends are attacked by the shadow committee. When they start to believe that Zile is somehow responsible, Annalise helps X and Speed get into the prison to question him about the attack. Meanwhile, Jared and Jesse spy on Speed and the gang for the Shadowy Woman and the Committee.

Speed and his pals must work with Annalise in class, but they have doubts about whether she's trustworthy. Annalise soon warms up to the group, but when it is time for the final team race, the Shadowy Woman contacts her and orders her to make sure that Speed and the Mach 6 are sabotaged by one of the men during the race. However despite the Shadowy Woman's threats, Annalise takes the hit for Speed instead but loses her car in the process.

The students are forced to mix up and swap cars. When another student, Mitch drives Jared and Jesse's car, he receives a message from the Shadowy Woman to get the Mach 6 files and decides to steal them for himself. Meanwhile, Speed and Conor go into the virtual track to find out how the attackers from the team race got into it and find that the attackers manage to create a tear allowing them complete access.

Speed and the gang go to Spritle to tell him about the tear in the virtual track. However, this causes Spritle to shut down the track for a week until it can be repaired. When Speed Racer Sr. warns the gang about the Alpha Academy, Speed and his pals investigate the school. Are they up to something? Meanwhile, Speed figures out that one of the Alpha students somehow managed to steal Annalise's car.