The Unbeatable God-Fist Janitor

David, a legendary champion fighter turned fugitive janitor, hides at a struggling boxing gym to protect a single mother and her daughter. When her vindictive ex-husband harms the child and orchestrates a brutal bet, David's concealed power explodes. Balancing restraint against escalating threats including cyborgs, David confronts what revenge has made him while guarding the family he owes an unpayable debt to.