故事发生在17世纪的法国，红衣教主黎塞留（查尔登·海斯顿 Charlton Heston 饰）想要谋权篡位，设下重重阴谋诡计。达达尼昂（麦克尔·约克 Michael York 饰）一心想要报效祖国，于是远赴巴黎想要加入火枪队。在此过程中，达达尼昂结识了阿多斯（奥列佛·里德 Oliver Reed 饰）、波尔多斯（弗兰克·芬莱 Frank Finlay 饰）和阿拉密斯（理查德·查伯兰 Richard Chamberlain 饰），四人不打不相识，成为莫逆之交。
　　一次偶然中，达达尼昂得知了黎塞留的阴谋，为了斩草除根，黎塞留设计令达达尼昂被判处了死刑，所幸得到了三名火枪手的救助，达达尼昂才捡回了小命。之后，四人将国王从刺客的枪口之下救出，并向绑架了国王和王后的黎塞留宣战。

　　Young Jim Hawkins, while running the Benbow Inn with his mother, meets Captain Billy Bones, who dies at the inn while it is besieged by buccaneers led by Blind Pew. Jim and his mother fight off the attackers and discover Billy Bones' treasure map for which the buccaneers had come. Jim agrees to sail on the Hispaniola with Squire Trelawney and Dr. Livesey to find the treasure on a mysterious island. Upon arriving at the island, ship's cook and scalawag Long John Silver leads a mutiny of crew members who want the treasure for themselves. Jim helps the Squire and Hispaniola officers to survive the mutiny and fight back against Silver's men, who have taken over the Hispaniola.