Our Shadowhunter heroes should watch their backs. An attack is coming, and the Clave's response could throw a wrench in the youngsters' plans.

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"Bad Blood" will air as episode 8, and new teasers for episode 9 indicate that the nephilim's New York City headquarters will run into a bit of trouble when representatives of the Clave come to visit. When March 8's "Rise Up" begins, Clary (Katherine McNamara) and Co. will lock horn with Clave rep Lydia Branwell (Stephanie Bennett) as she attempts to lay down the law.

"After the attack, the Institute and The Clave are on high alert and taking no prisoners to get answers. When Lydia makes a harsh call on the Seelies, Jace, Clary and Isabelle fear that this decision could be disastrous and the wrong way to defeat Valentine. Left with no other choice, the trio takes drastic actions to stop what is about to take place," Freeform teased. "Meanwhile, Simon struggles to deal with his new situation, and Alec is emotionally torn with what is happening at the Institute."

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What do you think the aforementioned attack will entail? Are the Seelies involved, or does Valentine have the Shadowhunters running in circles? What will become of Meliorn (Jade Hassouné)?

Find out when Shadowhunters airs Tuesdays at 9 p.m. ET on Freeform.