After a tragic accident brings his old life in London to an end, shy teenager Gianni is sent to live with his estranged grandparents in the beautiful surroundings of Italy’s Amalfi Coast.
There, he meets the irrepressible Angelo, who promises to show him his world and, as the long, hot summer days unfold, slowly helps Gianni to heal.
Gianni’s new life in the sun brings him friendship of a kind that he has never known and, with it, important discoveries about himself. But what will the future hold when the summer of the firefly comes to an end?