A knight in the service of a duke goes to a coastal villiage where an earlier attempt to build a defensive castle has failed. He begins to rebuild the duke’s authority in the face of the barbarians at the border and is making progress until he falls in love with one of the local women.

When ex-con artist Harry claims that a secret treasure is hidden inside Candleshoe, an English estate, he creates an elaborate plan to find and steal the prize. By convincing a girl named Casey to impersonate the estate owner’s long-lost granddaughter, Harry hopes to uncover the treasure’s location. But when Casey has a change of heart, she must follow the clues and find the treasure, in order to save Candleshoe and stop Harry before it is too late.