Haunted by the tragic loss of his elder brother, Miyagi Ryota, a teenager from Okinawa, Japan, struggles to grapple with questions about self-worth and life's purpose while immersing himself in basketball, the sport he and his brother shared a passion for. Widely viewed as underdogs, Ryota and his Shohoku High School teammates bravely take on a much more talented squad in their quest for recognition and glory. What lies ahead after their first slam dunk in the up-hill fight?