Episode 6 - S1.E6

Kay Sum uses explosives and kills many from White Lotus Sect. Sum Hung gets injured and is carried away by Cho Pat. Sum Chi joins hands with Kay Yuk and beats off their enemies. Escaped, they become sworn brothers.

When Kay Yuk learns that his father has stepped down and passed the throne to Kay Sum, he is gravely disappointed. He decides to join White Lotus Sect, so as to better position himself for getting back the throne in the future.

Sum Chi promises to lend him help, believing that he will turn out to be a benevolent ruler.

Sum Hung strongly objects to Kay Yuk's joining. He leaves in anger with his sister Cho Pat for the west.

Kuan Wah reports back to the Sect and is overjoyed to see Kay Yuk alive.

Yiu Kowk seeks Sum Chi out, thinking the latter has killed Kay Yuk. By a stroke of luck, their real identity as father and son is revealed.