Thirteen-year-old Mica takes his Rabbi’s dictate to help “”heal the world”” to heart, and launches a grand plan to send baseballs to Cuba. He knows only that Cubans have few resources, love baseball, and gave his grandpa refuge during the Holocaust. His filmmaker parents know a curveball is coming.

Havana Curveball follows Mica’s journey as he shifts from a high-pitched boy to broad-shouldered young man, squaring off against the complexity of the adult world. The simple act of giving, which drove his idealism at age 13, seems elusive at 14 and 15. Facing the obstacles the U.S. embargo throws in his way, he must decide how far to follow his dream.

Researching, writing letters, imploring his senator, meeting Cuba activists and an attorney, trying to make sense of a high school history lecture and his grandpa’s own resistance—he wonders if the whole enterprise is even possible, let alone worth it.