After years racing go-karts and looking up to her mother, a celebrity Formula 1 racer, Jojo Emerson-Boyd should be starting her own racing career. But when she loses her mom in a tragic crash, Jojo's future comes to a screeching halt. Now her dad won't let her get a license, much less race. Instead, she's stuck working at her grandmother's mechanic shop in the sleepy small town of Dell's Hollow.

But Jojo's heart quickens when Motorcyle Girl Eliana "El" Blum shows up at the shop. El grew up on the motocross circuit sidelines, watching her sister and idol Maxine compete. When El mysteriously loses all contact with Max, she's determined to find her, with her first clue leading straight to the mechanic shop, and to Jojo.

United by fate, the two quickly bond over Mario Kart showdowns and the Fast & Furious films. As their friendship shifts into something more, they'll have to confront both their growing romance and the grief woven into their complicated families if they hope to chase down their dreams and make it across the finish line.