January 11, 1991
French Foreign Legion paratrooper Lyon Gaultier discovers by accident that his commander withheld information from him about his brother who was critically injured after being set on fire by drug dealers. Lyon deserts and races to Los Angeles to help his sister-in-law and niece, and exact revenge on those responsible. When his brother dies and he can't find the killers, Lyon decides to raise money to help his brother's family. He joins an underground street fighting championship and soon becomes popular entertainment for the rich as the fighter named "Lionheart." When leads to those who shattered his brother's life reveal themselves bit by bit in the fight circuit, Lyon knows he must survive... against other fighters, the killers and members of his own Legionnaire unit.