In "Prison on Fire II", a police officer is killed by a fellow officer, causing chaos within the prison walls. Amidst the violence and sadism, two inmates form an unlikely friendship, navigating the dangerous world of triads and corruption. The film explores themes of loyalty, male bonding, and the complexities of father-son relationships.

In this latest chapter of the PRISON ON FIRE saga, Fung, a gang leader sentenced to life imprisonment, gradually turns to religion. With the help of the prison's priest, Fung begins to preach to his fellow cellmates. But the toughest skeptic turns out to be his own son, who is now in the same prison.

Prison on Fire is a gritty Hong Kong action film that follows a veteran who is locked up in a corrupt prison. He must navigate through favoritism, brutality, and violence while trying to defend his rights. As tensions rise, a riot breaks out, putting him and the other inmates in further danger. With its heroism and bloodshed, this movie captures the struggle for justice and survival in a harsh prison environment.