Batman: Soul of the Dragon

Batman, Bronze Tiger, Lady Shiva, and Richard Dragon join forces when they come to realize that they share a common acquaintance. The Martial Arts Master that trained them has been missing for a number of years and under mysterious circumstances. When a cursed relic resurfaces, the mystery of their dead master re-opens and Batman and his former classmates must face-off in the ultimate test of their Martial Arts kills to gain control of this dangerous relic.