Jace is in the training room, using one of the swords, and Maryse stands watching him patiently. As he finishes he sees her and amediatly walks over to her giving her a hug and Isabelle looking disappointed in the background. Alec shows up and Maryse tells them about a mission. She explains that the Seelie's have stopped contacting the Clave and won’t say why. Because of this the Clave suspect that they are working with Valentine as the avent heard from the Seelie scouts sent to spy on Valentine. Maryse strongly wants Jace and Isabelle to investigate and for Alec to look after Clary and train her while they are not there. However Jace thinks Alec should go instead of him. Maryse being their mum and head of the Institute orders Jace and Isabelle to go.
Luke, at the police station, is looking over the cases to do with demonic murders. One of his friends approaches him and advices him to stay safe as they need him. Luke asks his friend if he sees Clary or could find out where she is and if he could contact him to let him know.
Back to Clary, sketching her father Valentine, she rips out the page and crumbles it up throwing it behind her. Jace and Alec enter the main part of the institute talking about changing assignments however Alec wants to obey the orders and not upset his mum making a comment that he's left to look after Jace's "girlfriend". However Jace asks Alec not to take his eyes off Clary and to keep her safe. Alec walks back a step away from Jace causing Jace to ask what is wrong. Alec thinks that Jace is mad at him for what happened at Magnus’, but Jace tells him that their okay because he loves him like a brother and that their bound as parabatai is strong.
Simon stood outside Hotel Demort again however this time he is scared off by Raphael who warns him never to come back again.
Clary in the training room with Alec, as he teaches her to fight however she believe there is something to help them find Valentine back at her apartment, Alec refuses to go with her and that she cannot leave his sight. Alec receives a phone call and turns his back to Clary whom leaves the training room quietly to retrieve what she thinks might help back from the apartment. Alec turns around and notices she gone, ending the phone call, he runs around the institute looking for her, not finding her he leaves the institute.
Meliorn is grieving for the dead when Isabelle and Jace show up, which means that the Seelie scouts are dead that the Clave sent to spy on Valentine. Isabelle and Jace confused, start asking questions.
Valentine is recruiting members to the circle, using his steelie to draw the ruin of the circle on each new member. However, there is a chance they will not survive the ruin processes but if they do survive, Valentine has an army. Also one of Valentine's trusted members of the circle injects them with something strange.
Alec finds Clary and makes a smart remark before following her to the apartment which is where they meet up with Simon. Simon comments that he knows Brooklyn better then anyone else, Alec and Clary follow him to the apartment. When they reach the apartment, Clary finds her room was set a light so that no trace of her was left for anyone to track. Clary finds what she is looking for but doesn’t understand why there is different stuff in the box then what she remembered. Noise comes from outside causing Alec to check it out however leaving Clary and Simon alone wasn’t a good idea as they are kidnapped by Luke's friend and someone they don’t know. Alec sees through an archway and sees Clary and being forced into car by people he does not recognize. Alec tries to run after them but the car speeds off.
Jace examines the drapes in Meliorn’s room, whilst Isabelle questions him about the Seelie Scouts. Jace notices that the Seelie are in mourning which makes him think that the Seelie's scouts are dead and that is why they haven't been contacting the Clave. Jace accuses the Seelie that they will side with the winning side Valentine or not being a threat. Meliorn walks aways and Jace's phone goes off and Jace becomes annoyed very quickly because Alec has told him that Clary snuck out the Institute.
Alec, annoyed with himself for losing Clary, throws something across her old bedroom. Jace and Isabelle show up, Jace immediately starts asking where she is, Isabelle is also worried. Alec explains that he was securing the fire escape when they were taken also adding Simon’s name. Jace is not happy hearing his name, however Isabelle is worried about him. Jace blames Alec for losing Clarey and walks out in a rage. They take something of Clary's hoping to track her and Isabelle follows Jace grabbing Clary's bag and leaving Alec alone, he shortly follows them out of the apartment. Clary and Simon are taken to a docks yard, where they are taken into an old Chinese restaurant.
The item Jace took was one of Clary's drawings which he holds tight and tries to track her by using the drawing. Tracking alone is not working so Jace insists that Alec helps him by using their parabatai bond however they still cannot track her. While Isabelle confirms that they were not arrested, Jace loses his temper with Alec and they start arguing. Isabelle tries to stop them from arguing but Alec walks away.
Simon and Clary, both scared, start asking what their captors want and if Luke sent them. Luke didn’t send them, they are after the Mortal Cup. Clary clarifies that she does not know where the cup is and why everyone thinks she has it when she doesn’t. However the person Clary doesn’t know, threatens Clary and promises her if she doesn’t tell him where the cup is his werewolf friend will rip Simon apart. Clary makes up a location for the cup to save Simon some time. Simon on the other hand is tied up, upside down again. Simon pulls the handcuffs apart and gets himself down. Looking through the lockers in the room he’s in, he finds a lighter and a phone but doesn't know who to call.
Jace is trying to figure out who took Clary and Simon until Clary's phone rings in her bag. Jace answers it, and Simon, so happy to hear its Jace, finds a menu with the Chinese restaurants name on, 'Jade Wolf Chinese Food' and tells Jace. Jace asks Simon to create a diversion until they get there. Jace suggests a fire with the lighter that they found. Back to Clary, and her captures who are wondering where the others are as it taking them a long time to find the Mortal Cup. Simon pulls the fire alarms in which they move Clary from inside the restaurant to a storage crate outside. Luke turns up, lifting Clary over his shoulder and tells her he's taking her somewhere safe however Jace, Isabelle and Alec show up and rescue Clary and Luke disappears. Isabelle saves Simon and they are left surrounded by werewolves. The Alpha starts walking towards them until he is attacked by another werewolf who is challenging him for Alpha. When the fight is over, the other wolf appears in human form, it is Luke, Clary is surprised and wants to help him, Jace tries to hold her back for her safety but she tells Jace she's going to be okay. Jace letting her go to Luke realizes that Luke needs serious help. Jace tells Alec to go back to the institute however he's going to help Clary.
The episode ends with Jace letting Clary know that only a warlock can only heal an Alpha's bite and that Magnus Bane can help Luke. Jace reassures Clary that they will go to Magnus for help. They help Luke to his car and Simon suggests that he should drive as he is the only one with a license. In the car Clary tries to get Luke to stay awake as she is afraid of anyone else dying because of her and they drive off.