Leah Baxter is a genius. She's a few wins away from becoming a junior chess grandmaster, and her life is on course to achieve everything her mom and coach want for her. But Leah is at stalemate – grieving for her father, and feeling suffocated. She decides to make the ultimate sacrifice and quit chess. But chess doesn't want to quit her. Soon Leah discovers her new gambit: chessboxing, a dangerous hybrid sport which will test her body and mind to their limits. Can the pawn become the queen?