Plot
Edda is a young female mouse with a talent for racing who works at her family amusement park on the outskirts of Paris and dreams of racing in the Grand Prix of Europe. Her particular hero is racing legend Ed, a male mouse who has won the Grand Prix four times. However, following her mother’s death, the park is struggling, and her father, a retired Grand Prix champion, has taken loans from shady characters who will possess the park if the loans are not repaid in a week. In an attempt to raise money, Edda heads to Paris for the initial race of the Grand Prix, handing out fliers advertising her family’s amusement park to the crowds. However, she finds herself backstage and happens to come across Ed’s racing car, and cannot resist the urge to drive it. Ed catches her in the act and leaps onto the car, just as it speeds through the streets of Paris. Edda crashes the car in a mound of dirt, injuring Ed's shoulder. Since injury would mean disqualification, a frustrated Ed ultimately agrees to Edda’s plan, in which she secretly takes his place, in return for half the winnings to allow her father to pay off the park’s loans. Ed disguises Edda as a superfan who has won a contest to accompany him to the Grand Prix.
Edda drives in the initial Paris race, with Ed telling her what to do through a two-way earpiece. Edda is sabotaged as an unknown opponent coats her wheels in grease mid-race, causing her to spin out. She manages to recover and finish 30th, barely avoiding elimination. Ed refuses to believe that Edda was sabotaged, believing that she lacks the skills and experience to compete at such a high level like himself. In the second race in the alps, Edda once again notices sabotage as some of the snowball obstacles start chasing after racers, though she avoids them and finishes 10th. Edda is convinced that Nachtkraab, an intimidating crow racer, is behind the sabotage, but Ed refuses to believe her. In the third race in Italy, Edda is in contention to win alongside Nachtkraab and Magnus, a friendly bear racer, when a blast of wind from one of the two knocks her off the course and spoils her chance of victory. After the race, she begins to search Nachtkraab’s car in the hopes of exposing him, but she is caught tampering with his car and is penalised with a 1-minute starting penalty in the final race. Having recovered from his injury, Ed fires Edda. Edda discovers that Magnus, resentful about the fact that he always comes in second, is the one performing the sabotages, and that he has created a fleet of magnetic drones to sabotage the final race in London. She also learns from Böckli, a racer who knew Ed when he was young, and as an orphan, he learned he couldn’t rely on anyone else to help him.
Edda tries to warn Ed about the sabotage as he prepares to race in the finals, but he does not listen. As the race starts, her father and friends from the amusement park arrive. As Edda explains to them what has been happening, she realises Magnus’ drones have travelled into the sewers to interfere with the racers. She takes her father’s vehicle and pursues. Edda finally convinces Ed of what is going on after she disables a drone that was attempting to spin out his car, and Edda dispatches most of the drones to allow Ed to recover and overtake the other cars to take the lead. A furious Magnus sees Edda on his dashboard and orders the drones to levitate an underground train. As Ed is approaching the finish line, he sees Edda being pursued; he decides that saving her is more important than victory, and turns the car around just before crossing the line, managing to land his car onto the train and stopping it before it can crash into a crowd of spectators.
Magnus wins the race and is awarded the trophy, but Ed and Edda expose his sabotage, and he is taken away by the police; Nachtkraab, who finished second, is awarded the trophy instead. However, he passes it on to Edda, having been long aware that she was substituting for Ed as he had recognised her distinctive driving style as being similar to her father’s. Ultimately, Edda’s father uses the winnings to pay off his loans, while Edda forms a racing partnership with Ed and Böckli.
