Fei Fu Kwan Ying, also known by its alternative title Flying Squads, is a 1989 Hong Kong action crime thriller television series produced by TVB and starring Donnie Yen, Pauline Yeung and Eddie Kwan.

Originally aired from 7 to 25 August 1989 on TVB Jade, the series reran on TVB's Network Vision channel from 11 to 29 January 2016 on weekends as a part of the special, Our... Donnie Yen (我們的...甄子丹), which began running on the same day.

[1][2] Cheung Ho-nam (Donnie Yen), Lau Chuen-hang (Eddie Kwan) and Cheng Sing (Oscar Lam) are three best friends.

Ho-nam and Sing later joined the Special Duties Unit of the Hong Kong Police Force while Cheun-hang inherit his father's triad business.

With the support and encouragement of his confidante, Anita (Mimi Kung), Chuen-hang finally eliminated dissidents and his influence gradually expands.