With no clue how he came to be imprisoned, drugged and tortured for 15 years, a desperate man seeks revenge on his captors.

This biopic tells the true story of Korean boxer Kim Deuk-gu. Born into poverty, Kim used boxing to free himself from his bleak surroundings, eventually becoming the world's top lightweight. Tragically, Kim's life was cut short when he died from a blood clot in his brain during a championship fight with Ray Boom Boom Mancini.