A young girl undertakes an impossible trip to the moon, makes friends with the stars, and brings back something priceless in this gentle and lyrically told picture book about family, history, and memory. Grana used to tell the best stories, and Mabel used to long to soar through the heavens. Nowadays, Grana mostly lies in bed and Mabel stays close to home. But one day, Grana asks, "If we can touch the moon, then what is impossible?" So Mabel decides to do just that, embarking on a journey through the stars where The Seven Sistahs, The Big Dipper, and other constellations help her on her quest and teach her about African mythology and African American history. With the support of her new companions, Mabel reaches for her biggest dream yet: to make her sick grandma well again.

A young black girl lifts her baby hands up to greet the sun, reaches her hands up for a book on a high shelf, and raises her hands up in praise at a church service. She stretches her hands up high like a plane's wings and whizzes down a hill so fast on her bike with her hands way up. As she grows, she lives through everyday moments of joy, love, and sadness. And when she gets a little older, she joins together with her family and her community in a protest march, where they lift their hands up together in resistance and strength.