An orphaned American washes to shore in Japan and is mistaken for the Great White Ninja of legend. Raised among the finest Ninjas, Haru (Chris Farley) grows into a big, strong, slapstick disaster. An embarrassment to his clan, Haru has no hope of ever becoming a full Ninja. But when a beautiful blonde pleads for help, Haru is given one dangerously funny chance to prove himself.