Episode 1: "The Itchy Onion"

Debut date: FRIDAY, APRIL 5 (10:00-11:00 p.m. ET/PT)

San Francisco, 1878. Ah Sahm (Andrew Koji), a newly arrived Chinese immigrant with serious fighting skills, is introduced to Chinatown's most ruthless tong, the Hop Wei, by Chao (Hoon Lee), a fixer. After impressing Young Jun (Jason Tobin), son of tong leader Father Jun (Perry Yung), Ah Sahm is branded and taken to a brothel, where he befriends Ah Toy (Olivia Cheng), a courtesan with connections.

Later, in search of a woman who left China two years earlier, Ah Sahm crosses paths with Mai Ling (Dianne Doan) and Li Yong (Joe Taslim), followers of the rival tong leader Long Zii (Henry Yuk), who is trying to avoid an opium war with the Hop We - a war that Walter Buckley (Langley Kirkwood), deputy to San Francisco Mayor Samuel Blake (Christian McKay), actively promotes. Meanwhile, after two Chinese laborers are killed by white thugs, police sergeant "Big Bill" O'Hara (Kieran Bew) is tasked with creating a Chinatown squad. Enlisting southern-born cop Richard Henry Lee (Tom Weston-Jones), Bill soon finds that the hostility between the Chinese and white dock workers, whose unofficial leader is Irish tough Dylan Leary (Dean Jagger), is unlikely to end anytime soon.

Written by Jonathan Tropper; directed by Assaf Bernstein.