Translate the text into English. In the recent past, world martial arts champion Alex Falkner now runs his own sports school. When two of his students disappear, there is little hope of rescuing the girls, and the police offer no help; he takes the investigation into his own hands. Clues lead him to a cartel that traffics in children. This terrifying discovery makes Alex recall his championship past and go all the way to punish everyone involved in harming the children.