In Asora, an ancient king's weapon returns to the Fields of the Fallen to become a young boys first mission. The Sword of Barra waits.
During what was not an ordinary day, London is attacked by hordes of winged monsters. Jason Crowther is rescued by his substitute teacher and transported to a mystical world, Asora.
Jason attends Greenhearts, an academy for Hearts, who live a life of honor and service. He wants to pass the rigorous and dangerous training, but it’s not going to be easy with fear-ridden Molly, clumsy Fawn, forgetful Marcus, arrogant Carrig and disaffected Robin as squad mates.
They are taken to the Fields of the Fallen, to each choose an ancient weapon. As Jason grabs the Sword of Barra, he sees a glimpse of his future. Somebody will attempt to kill him, and he’s not the only one with worries. His fellow squad members each see something too.
Jason discovers the true reason he’s on Asora and inadvertently gets kidnapped. Can the other five forget their differences to save their friend?