The drama is the third instalment of the Line walker series and focuses back on Sit Ka Keung aka Bao Seed on his journey to find the love of his life Ding Siu Ka aka Ah Ding who parted ways due to another undercover mission.
No. of episodes: 37
Genre: Police, Action, Thriller, Undercover, Triad, Investigation
Native title: 使徒行者3
Original network: TVB, Tencent Video
Premiere: 12 Oct 2020
Still cuts in Line Walker 3, Raymond Lam. 
Still cuts in Line Walker 3, Kenneth Ma. 
Still cuts in Line Walker 3, Michael Miu. 
Still cuts in Line Walker 3, Sisley Choi. 
Still cuts in Line Walker 3, Mandy Wong. 
Raymond Lam for Line Walker 3. 
Michael Miu for Line Walker 3. 
Benz Hui for Line Walker 3. 
Kenneth Ma for Line Walker 3. 
Mandy Wong for Line Walker 3. 
Owen Cheng for Line Walker 3. 
Benjamin Yuen for Line Walker 3. 
Priscilla Wong for Line Walker 3. 
Sisley Choi for Line Walker 3. 
Tony Hung for Line Walker 3. 
Shiga Lin for Line Walker 3. 
Serene Lim for Line Walker 3.
