When adventurer David Purdue hears about an underground martial arts tournament whose grand prize is an ancient mystical sword, he knows that he needs to win that competition however he can.Recruiting a young fighter to represent him in the tournament, Purdue is forced to depend on another person's strength as fighters from all over the world gather to face each other in single combat.As things escalate and familiar faces return, Purdue makes a choice that can decide the outcome of the whole tournament. Through a series of bloody brawls, botched heists, and long-simmering feuds coming to a head, Purdue fights to accomplish his goals, but the real battle may await him outside of the arena...