In the gritty, crime-ridden underbelly of 1960s Hong Kong, a desperate immigrant and a corrupt detective forge a dangerous alliance that will define an era. Donnie Yen stars as Crippled Ho, a penniless refugee from mainland China whose ruthless ambition drives him to seize control of the territory's lucrative drug trade. His meteoric rise is facilitated by Andy Lau as Lee Rock, a shrewd and charismatic police sergeant who trades law and order for power and wealth, becoming the most corrupt officer in the force. Together, their illicit partnership flourishes, but in a world built on betrayal and violence, no empire is ever secure. Directed by Jason Kwan and Wong Jing, this intense action-crime saga paints a visceral portrait of loyalty, greed, and the intoxicating pursuit of the ultimate high, where every triumph is shadowed by the threat of a devastating fall.