Punk Hazard (1970)

Upon finally entering the New World, the Straw Hat Pirates immediately receive a distress call from residents of Punk Hazard, who state that a samurai is attacking them. Without hesitation, Luffy sets out to the blazing island, with Vice Admiral Smoker hot on his tail. On the supposedly death-ridden and empty island, the Straw Hats soon must contend with both the G-5 Marines, led by Vice Admiral Smoker, and the mad scientist Caesar Clown, whose deadly experiments must be stopped.