The trailer for Twilight of the Warriors: Walled In, the Hong Kong neo-noir martial arts crime action film, was unveiled on Tuesday. The film, helmed by Soi Cheang, is based on City of Darkness by Yuyi and the comics of the same name by Andy Seto.

The trailer shows that the lead characters of the film live in a walled city which has a few rules, like, 'Don't sell drugs', 'Don't make enemies' and 'Don't create trouble'. We then see the protagonists go exactly against these rules as they sell drugs, indulge in violence and battle with foes.

Louis Koo, Sammo Hung, Richie Jen, Raymond Lam, Terrance Lau, Kenny Wong, Philip Ng, Tony Wu and German Cheung star in prominent roles in Twilight of the Warriors: Walled In.

The official synopsis of the film reads, "Many years after the bloody turf war that ushered in an uneasy era of peace in Hong Kong’s underworld, the notorious Kowloon Walled City serves as a fortified, lawless safe haven for gangs and refugees alike. But when a skilled underground fighter runs afoul of the most feared Triad boss in Hong Kong, a bounty is placed on his head despite his connections to the leader of the infamous enclave. As his pursuers violate the tenuous territorial truce to exact their vengeance, the fallout reignites old grudges, bringing decades of building tension to a brutal, bloody boiling point."

Twilight of the Warriors: Walled In, which was already released locally in May this year, will hit theatres globally on August 9.