In the midst of a violent invasion of Earth by unknown alien forces, photo-journalist Wakatsuki Tetsuya comes across a scantily-clad alien woman, cutting a swath of death through the Terran ranks with her sword. After a chaotic struggle, Tetsuya is knocked unconscious, only to awaken aboard her starship. To his surprise, she turns out to be Kahm, the invaders' princess - and she has picked Tetsuya for a starring role in her upcoming wedding. As the groom....
Three robbers escape with loot from a heist before one of them kills the others. Their corpses wash up near the aftermath of a maritime calamity, provoking a policeman's interest.
As tentativas de Musashi para arranjar um duelo com o renomado mestre Yagyu Sekishusai o coloca numa situação ruim diante dos alunos do mestre, o que o leva ao desenvolvimento de sua famosa técnica de duas espadas. Enquanto isso, o homem que se tornará seu maior rival, Sasaki Kojiro, faz uma aparição.
