Luffy and his crew set out determined to obtain the world's costliest sword, but they encounter trouble on an island that separates them with hostile marines and alluring women. As Zoro sides with an old friend against his crew, Luffy and Usopp navigate through a perilous cave, and the rest of the team helps a village fight off the marine attack. In a tragic turn of events, Zoro defeats Sanji and steals the sacred pearls to prevent the deadly sword from triggering a worldwide blackout.