A teenager discovers she is descended from a race of half-human, half-angel warriors whose duty is to defend the world from demons. When her mother disappears, she joins a group of the magical beings on a dangerous journey into an alternate version of New York inhabited by strange creatures. Fantasy adventure, starring Lily Collins, Jamie Campbell Bower, Lena Headey and Jonathan Rhys Meyers.

In New York City, Clary Fray, a seemingly ordinary teenager, learns that she is descended from a line of Shadowhunters — half-angel warriors who protect humanity from evil forces. After her mother disappears, Clary joins forces with a group of Shadowhunters and enters Downworld, an alternate realm filled with demons, vampires, and a host of other creatures. Clary and her companions must find and protect an ancient cup that holds the key to her mother's future.