In their tiny corner of Fox Point, Rhode Island, Gemma Hopper's older brother Teddy is a baseball god, destined to become a Major League Star. Gemma loves playing baseball, but with her mom gone and her dad working endless overtime, it's up to her to keep the house running. She's too busy folding laundry, making lunches, getting her younger twin brothers to do their homework, and navigating the perils of middle school friendships to take baseball seriously. But every afternoon Gemma picks up her baseball glove to pitch to Teddy during his batting practice-throwing sliders down and away, fastballs right over the middle (not too fast or he'll get mad), and hanging curveballs high and tight. Could baseball be Gemma's ticket to the big leagues or will it mean the end of her family as she knows it?