A group of disinterested Hong Kong teenagers, who enjoy crossing the border to Shenzhen's disco for drug-fueled fun on weekends, get into a major brawl, leading to a significant disaster.A group of disinterested Hong Kong teenagers, who enjoy crossing the border to Shenzhen's disco for drug-fueled fun on weekends, get into a major brawl, leading to a significant disaster.A group of disinterested Hong Kong teenagers, who enjoy crossing the border to Shenzhen's disco for drug-fueled fun on weekends, get into a major brawl, leading to a significant disaster.