In 1878, Eurasian martial arts master Ah Sahm (Andrew Koji) journeyed to San Francisco in search of the sister who'd fled China and an abusive marriage. It wasn't long before word of his prowess spread across the Barbary Coast-and to warring Tong factions that coveted his skills. Historical actioner from Cinemax, produced by Shannon Lee and Justin Lin and based on a series concept by her father Bruce, co-stars Olivia Cheng, Jason Tobin, Dianne Doan, Kieran Bew.