Edda Gemma Arterton is a young, quick-witted mouse with a natural talent for racing. She works at her family’s small amusement park on the outskirts of Paris and dreams of reaching the Grand Prix of Europe, inspired by the legendary racer Ed Thomas Brodie-Sangster, a four-time Grand Prix winner who looms large in her imagination. After her mother’s death, the park’s fortunes take a turn for the worse. Her father, a former Grand Prix champion, has fallen into debt, taking loans from shady characters who threaten to take the park away if the money isn’t repaid within a week.
To raise the needed funds, Edda travels to Paris and hawks flyers for the park to curious crowds. While there, she slips backstage and stumbles upon Ed’s racing car. The thrill is irresistible, and she can’t resist taking it for a spin. Ed catches her in the act and literally leaps onto the car as it tears through the Paris streets. The joy of speed quickly becomes trouble, and Edda crashes the car into a dirt mound, injuring Ed’s shoulder. With disqualification looming, Ed agrees to a bold plan: Edda will secretly take his place in the Grand Prix, and in return, she’ll share half the winnings so her father can pay off the park’s debts. Ed masks Edda as a superfan who has won a contest to accompany him to the finals, buying them time for a daring deception.
The grand prix begins in Paris, where Edda drives while Ed communicates through a two-way earpiece, coaching her on each move. Trouble arrives when an unknown opponent coats her wheels with grease, sending her spinning out of control. She digs deep, regains momentum, and limps through the finish in 30th place, narrowly avoiding elimination. Ed, however, remains unconvinced that sabotage is real, attributing the mishap to Edda’s inexperience rather than foul play. The next race, set in the snowy Alps, proves even more treacherous: sabotaged safety nets and snowball obstacles begin to chase racers. Edda’s quick reflexes keep her in the race, and she finishes 10th. She believes the culprits behind the sabotages are Nachtkraab [Colin McFarlane], a fearsome crow racer, but Ed remains skeptical.
In the third race, held in Italy, Edda appears poised to contend for victory alongside Nachtkraab and Magnus [David Menkin], a generous bear racer who often places second. A gust of wind from one of the obstacles derails her, squandering her chance at glory. After the race, Edda tries to inspect Nachtkraab’s car to uncover the plot, but she’s caught tampering and penalized with a one-minute starting disadvantage in the final race. The discovery leaves Ed furious, and he fires Edda from the team. Edda’s investigation then turns to Magnus, whom she suspects of masterminding the sabotage; she uncovers that he’s built a fleet of magnetic drones designed to disrupt the final London race. Böckli [DJ Bobo], a racer who once knew Ed in his youth, confirms that Ed learned from a rough upbringing that he couldn’t rely on others—an insight that echoes through the team’s approach.
With Ed skeptical and the final race on the horizon, Edda tries to warn him as he prepares to race. Her father and friends from the amusement park arrive to support her, and she explains the extent of the sabotage. Magnus’s drones infiltrate the sewers, aiming to derail the racers. Edda seizes her chance, disabling a drone that threatens Ed and taking action to neutralize the rest. Her efforts help Ed regain speed, and together they fend off the drone threat long enough for him to catch the lead. Magnus, furious at the turn of events, orders his drones to lift an underground train to crash a crowd if necessary. As Ed nears the finish line, he spots Edda being chased, and he makes a decisive choice: he turns his car around to rescue her, even if it means risking the victory he so deserves. He executes a daring move, landing his car on the train and stopping it just in time to prevent disaster.
Magnus ultimately wins the race and receives the trophy, but his sabotage is exposed, leading to disqualification and arrest. Nachtkraab finishes second and, in a gracious gesture, passes the trophy to Edda, recognizing the unmistakable driving style that mirrors her father’s prowess. In the wake of the chaos, Edda’s father uses the winnings to repay the park’s loans, ensuring its future. The film closes on a hopeful note: Edda forms a racing partnership with Ed and Böckli, embracing a future built on trust, teamwork, and a shared passion for speed. The journey transforms a determined young racer into a community’s symbol of perseverance, proof that loyalty, courage, and clever planning can overcome even the most daunting odds.
