Someone is out to get Simon and Jace is on the hunt to find out who it is, meanwhile Clary turns to Luke to find a way to help Jace. Alec worries about the future of his relationship after learning more about Magnus’ romantic past. (Guest starring Anna Hopkins, Chai Hansen and Lisa Berry).

Jace’s concerns grow about his mental state and turns to Luke for information on his family’s past. Clary and Izzy go after a rogue vampire and Simon hunts for a new apartment. (Guest starring Anna Hopkins, Chai Hansen and David Castro).