The Foundation (決戰玄武門, literally translated as "Decisive Battle of Xuanwu Gates") is a TVB television series, premiered in 1984. Theme song "In Dream Several Sorrow" (夢裏幾番哀) composition and arrangement by Joseph Koo, lyricist by Wong Jim, sung by Michelle Pau, and the sub theme song "I Cannot See My Tears Flow" (不見我淚流) composition and arrangement by Joseph Koo, lyricist by Wong Jim, sung by Michelle Pau.

Plot

Set in the late reign of Emperor Gaozu of Tang, the Ho Tien Foundation has held the prestigious rank as kong-woo's most formidable clan for years with the Wu-Ling church enviously coveting to oust them from their position. Kong Fung (Wong), a country boy desperate to fulfil his late father's dying wish to become the greatest warrior in the realm leaves behind his lover Sik-Sik (Yung) to join the Ho Tien Foundation. Meanwhile, in a power struggle with his brothers for their father's throne, second prince Li Shimin (Miu) seeks support from exiled general Li Jing (Tang dynasty) (Lau) who leads him to recruit aid from kong-woo where he befriends Kong. With the other princes also turning to kong-woo to recruit talent thereby escalating the rivalry between clans and princes alike, things become further complicated with Shimin becoming close with Sik-Sik who is taken in by Li Jing's household but whom Kong still has feelings for. As clans battle clans, the princes duel each other, infighting at Ho Tien arise and an interconnected web of love triangles forms, events soon all lead to their respective conclusions in a series of heated showdowns.