The story opens about a lovely girl named Buttercup, and her relationship with the stable-boy Westley.  Buttercup loved bossing Westley around.  Yet, everytime she ordered him to do something, he always said, "As you wish."  As they grow up, it turns out that they are in love.

When Buttercup reveals that she loves him, Westley leaves Florin, seeking his fortune in America.  Unfortunately his ship was attacked along the way by the Dread Pirate Roberts, who was known to take no prisoners. 

Prince Humperdinck of Florin is pressed to marry but refuses to marry the bald Princess of Guilder, and instead sets his eye on Buttercup.  However, shortly afterword Buttercup is kidnapped and taken to Guilder but a mysterious man foils the kidnapping.  The man is the Dread Pirate Roberts, so Buttercup orders him to throw himself down a ravine.  As he complied he said, "As you wish," revealing that he is actually Westley. 

Westley's arrival and interference ruins Humperdinck's plans to marry then murder Buttercup and frame Guilder for it, as pretense for a war.  But Westley makes some new friends (two of the kidnappers) and manages to rescue Buttercup from being married to Humperdinck.  They escape to his ship, the Revenge, and then there are three endings: 1) happy ever after.  2)die fleeing from Humperdinck.  3)escape, and live a less than happy ever after. 

Read the linked summary, and watch the Movie to get more details and enjoy some humorous moments.  Especially the line "Hello, my name is Inigo Montoya.  You killed my father, prepare to die."