Clara Sinclair has learned to live one lonely day at a time. It was the only way she managed to survive her husband's death in World War II and raise their young son alone. But now she's at a loss as to how to handle the defiant teenager he has become, even as she struggles to keep her family financially afloat. She's fresh out of ways to turn her luck around-until a daring stranger's unexpected kindness sparks hope she hasn't felt in a long time...

Shirley "Cha Cha" Muldowney, is the young wife and mother who defied the sport of drag racing to become the first female top fuel champion in NHRA history. But before she could reach the record books, Shirley had to survive an abusive first marriage, her volatile love affair with fellow racer Connie Kalitta, a horrific accident, and a sexist world that tried to stand in the way of one remarkable woman who dared to put her heart on the line.