Four beautiful rivals at an invitation-only martial-arts tournament join forces against a sinister threat. Princess Kasumi is an aristocratic warrior trained by martial-arts masters. Tina Armstrong is a wrestling superstar. Helena Douglas is an athlete with a tragic past. Christie Allen earns her keep as a thief and an assassin-for-hire. The world's best fighters are invited to DOA, an invitational martial arts contest. There, four female rival fighters will have to work together to uncover the secret that the organizer of the tournament is trying to hide.