When the leader of a vicious motorcycle gang finds a farmworker's son flirting with his woman, he beats the boy senseless, then kidnaps the farmworker's daughter.

The reclusive Dr. Zorba has died and left his sprawling mansion to his nephew Cyrus and his family. They will need to search the house to find the doctor's fortune, but along with the property itself, they have also inherited the occultist's collection of thirteen ghosts.

Major Jim "Lance" Lansing, an American ex-pilot of the U.S. Air Corps, returns to Scotland after the war and finds much trouble in the glen where he settles because of the high-handed activities of the local laird, Sandy Mengues, a wealthy South American who, with his daughter Marissa, has returned to the land of his forefathers. Led by Lansing, the people eventually prevail upon Mengues to restore peace to the glen, but not before a brief and unconvincing fight between Lansing and Dukes, the Mengues foreman. Written by Les Adams