Twenty-two-year-old Grace Miller is a sprinting prodigy, meticulously groomed by her adoptive father, Marcus Kane. For two decades, every race result she’s posted has been precisely calculated—just enough to secure sponsorships, yet always falling short of qualifying for world-class competitions. When Marcus presents her with a contract demanding she intentionally slow down by 0.3 seconds during an upcoming qualifier, Grace makes the first truly independent decision of her life. The price for tearing up the contract is total erasure: her access, her coach, her accounts, and her apartment—all wiped away overnight. Hiding out in a cheap motel and counting the last of her cash, she receives an unexpected DNA report from a stranger. The moment she unfolds that page, a new, entirely different track opens up before her.