The Untamed Season 1 Episode 20
When Lan Wangji and Jiang Cheng join hands to fight Qishan Wen Sect, they find a lot of people from Wen Sect by an unknown person. By the time they get to the place where Wen Chao and Wen Zhuliu are staying for the night, they find out who is responsible for what they saw in these days.