Clary comes up with a plan that will bring Shadowhunters and Downworlders together on Shadowhunters. "Alliance" is the 21t episode of the show's third season.
Clary: Simon, how could someone as smart and perceptive as you not realize the person sitting right there is in love with you? Simon: I guarantee you I'm not the only smart, perceptive person to make that mistake.
