Iron Neck Li (Chi Kuan Chun) signs on as a personal bodyguard for a Chinese prince. The potentate plans to visit the lawless island of Formosa, where criminals lie in wait -- highwaymen who would love to take a crack at the rich prince. But...
因行侠仗义被老百姓称为铁脖子的李勇，偶然与当朝太子结识，结伴游台湾，一路上扶贫救弱，除暴安良，萧受奸人指使与山地人勾结杀害了为殿下保驾的李勇，后知真相将奸人杀死...
