Clary Fray is a normal teenager living in Brooklyn with her mother. One day, she discovers that she is descended from a line of Shadowhunters; humans born with angelic blood that fight to protect our world from demons. After her mother is kidnapped, Clary must team up with three Shadowhunters: Jace, Alec and Isabelle and her best friend Simon on a quest to find her mother and recover her past.