Shadow Hunters Season 01 Episode 06

Clary, Jace, and Simon take a mortally wounded Luke to Magnus for help. At Luke's insistence, Magnus informs Clary of the Circle's past and her mother's involvement with the group. Robert Lightwood arrives at the Institute, and he and Maryse task Isabelle with mending the Seelies' broken ties with the Clave and restoring the family name. When Isabelle informs Alec that their parents plan to marry him off, he angrily leaves the Institute for Magnus' loft. There, he, Magnus and the others save Luke's life with magic. Luke informs Clary that she had a brother, Jonathan Christopher, who died in a fire caused by Valentine. Clary then discovers one of her powers, making her realize she knows the whereabouts of Mortal Cup.