A loyal inmate convicted of accidentally killing his unfaithful wife. In the first film, he defends his honor against triad boss Micky and corrupt guard Scarface Hung, biting the guard's ear off during a massive brawl. The sequel follows his struggles with gang tensions, two prison escapes to see his son, and betrayal by corrupt Officer Zau. He ultimately fights back, incapacitates Zau, and endures the relentless cycle of prison brutality.