Watched this movie after completing the breakout brothers trilogy. If you like classic HK Films, especially the prison ones (e.g. chow yun fatt's prison on fire) this would be a modern take on it.

The premise and story, while nothing mind-blowing, sets the tone for veteran actors ricky chan and ray liu to bring out their "da lou" big brother roles.

Stuck inbetween them is Justin Cheung, rising to fame from "OCTB" as a joker-esque villian who subsequently showed his range of acting in the breakout brothers film as a uncouth big boss antagonist in prison.

It's a nice just juxtapose for Justin Cheung as this time round he's the protagonist, and in a much meeker role with a cunning and strategist mindset versus his role in Breakout Brothers, which again shows his range of acting too.

All in all a very fun ride as you are constantly on a look out on the dynamics between the two gangs and the unpredictability and ruthlessness of ricky chan as the film's primary antagonist.