By 2048, motor racing has evolved into a popular fighting race called IGPX, a competition of humanoid high-speed mechs running at 600 km/h. As the winner of the IG-2, Team Satomi is now joining the top league, the IG-1. But on the other side of the shining glory, the young team suffers for a total lack of teamwork. To begin with, defense pilot Liz does not get along with Takeshi, the forward; they always get into fights. And when Takeshi meets with Yamma, from the next opponent, Team Sledgemama, he gets a harsh greeting. Will Team Satomi make it in the IG-1?

The new IG-1 season opens. The first opponent for the rookies of Team Satomi is Team Sledgemama, known for its rough play. While Sledgemama's leader Yamma relentlessly aims at Takeshi, Liz and Amy desperately fight back, but the battle in the IG-1 is tougher than anybody in Team Satomi had imagined. Takeshi looses confidence and the team spirit slumps for the worst. Then a depressed Takeshi meets "Princess" Fantine from Team Skylark, the idol of the IG-1.

A new IGPX season is about to start. The previous season's experience has matured Takeshi greatly, and he even seems secure and sure. On the other hand, Liz feels the pressure of being called a member of "the mightier Team Satomi." The two are approached by Zanak and Judy from Team White Snow, the new team just promoted from the IG-2. But Team Satomi's opponent for the first match is Team Edgeraid, and seems to have a new strategy to compete with the champions. And will Liz do, given that she was scared of the race due to the pressure?