Dashing Youth Episode 12

Team Dong Jun passes the first test and learns that they must get all the pouches from the other teams to get the final solution. Zhu Ge Yun reveals he is Lord Wu Zuo and goes after Dong Jun, but Wang Yi Xing and Ding Zhi protect him. Master Li decides to get involved and punishes the Wu Zuo twins. The team splits up for the final destination, with Yi Xing and Ding Zhi facing off with Zi Yu Ji, who realizes Ding Zhi, like Dong Jun, has hidden martial arts powers. (Source: frankly at MyDramaList)