Tiny Hearts follows world-renowned pediatric heart surgeon Dr. William Novick as he journeys into active conflict zones to perform life-saving heart surgery on children who would otherwise have no chance to survive. While confronting his own health challenges, Dr. Novick operates in some of the world’s most dangerous and underserved regions, where every decision can mean life or death. Through unprecedented access, the film reveals an extraordinary story of sacrifice, resilience, and a lifelong mission to heal the world’s most fragile hearts.