Clashing martial arts twins face relentless villains, thorny romance and brotherly rivalry as their troubled pasts catch up to them.

The Legendary Siblings is a Taiwanese television series adapted from Gu Long's novel Juedai Shuangjiao. The series was directed by Lee Kwok-lap and starred Jimmy Lin and Alec Su in the leading roles. It was first broadcast on TTV in Taiwan in 1999

A Hong Kong television series adapted from Gu Long's novel Juedai Shuangjiao.

The Proud Twins is a mainland China and Hong Kong co-produced television series directed by Wong Jing, starring Dicky Cheung, Nicholas Tse, Fan Bingbing and Yuan Quan in the leading roles. The series is adapted from Gu Long's novel Juedai Shuangjiao. It was first broadcast in 2004 in mainland China.

One hundred seventy years ago, a wise monk made a section of land known as the Villians Valley, a sanctuary. Anyone who came to the valley was considered protected and safe from the law. The proclamation also stated that they should have a chance at repentance. The Master of Eva Palace, who is now master of the martial arts world, holds no regard for the ancient laws and enters the valley in search of the 10 Untouchable Villians because she has a warrant of justice to destroy them. The remaining 8 villians were actually the 10 Untouchable Heroes until they were framed by two of their own members, The Twin Villians, and used as scapegoats.

After his parents are murdered, Jiang Xiao Yu is separated from his twin as a baby and taken by a family friend to Villains Valley, where he is raised to be a villain by a host of outlaws, each of whom has a special skill. When he's old enough, he devises clever means to trap each of his uncles and escape the valley to head off into the outside world. A chance encounter with a beautiful girl dressed as a man leads to a treasure hunt and eventually a confrontation with the Princess of Yi Hua Palace, the one who murdered Xiao's parents in the first place. Eventually, a reunion with his twin will occur.