《王者之劍》的故事融合了劍士與魔武士的神密傳說。片子從一群有勇無謀的勇士混戰與廝殺開始，主角柯能本來是奴隸，小時候他在一場大屠殺中成了唯一的伴存者，同時也讓他幸運的獲得了自由，並跟隨一名長者習武，於是在長者的蓄意養成下，他成了冷血的殺人機器。 學成之後，柯能展開他的復仇之旅，踏上尋殺父殺母仇人的行程。在途中他結識了兩名盜賊同行，而原本只是單純的復仇事件，卻因仇人綁走了國王的女兒……只要他找到仇人，就可以救得公主……

A gigantic serpent is captured on a remote island and shipped to an American college for experimentation.

Two brothers rob a bank and take a young girl hostage. They find out that the girl is a nudist, so they force her to take them to a nudist colony so they can hide out.

A demented archaeologist discovers a living, breathing serpent creature known to the Aztecs as Quetzalcoatl and accidentally kills his wife by giving her one of the beast's feathers, causing the creature to track her down and slaughter her. Using this knowledge he exacts revenge upon his enemies by placing one of the feathers on his intended victim and letting the beast loose to wreak havoc.

Based on a Lithuanian folk tale.