Secondary school student Michael Cooper moves to a decrepit house, with his parents and baby sister. There, the baby suffers a heart condition and is sent to the hospital. Michael investigates the dilapidated garden shed and meets Skellig, a man with owl wings. Michael befriends a girl named Mina, who is equally intrigued by Skellig. When the couple argue about moving away, Michael brings Skellig outside and Dave destroys the shed. Michael and Mina take Skellig to a tall tower, where Skellig reveals his magical ability. The condition of the baby girl worsens and Michael frequently visits the hospital, where he meets a dying woman named Grace. Encouraged by Michael, Skellig allegedly visits the hospital to save the baby, whom Michael and his parents named Grace Joy. Some time later, Skellig spends time with Michael and Mina.
The film was part of Sky 1's plan to invest £10 million in producing three new high-definition dramas.[2] Filming began in Caerphilly on 2 September 2008, with scenes shot in and around Cardiff, Wales.[3][4] Roth joined the cast for the film.[5] It was written by Brignull and directed by Jankel. The film aired on Sky 1 on 12 April 2009.[3]