After arriving in India, Indiana Jones is asked by a desperate village to find a mystical stone. He agrees – and stumbles upon a secret cult plotting a terrible plan in the catacombs of an ancient palace.

Caroline is to be wed to Sir Ralph and invites her sister Barbara to be her bridesmaid. Barbara seduces Ralph, however, and she becomes the new Lady, but despite her new wealthy situation, she gets bored and turns to highway robbery for thrills. While on the road she meets a famous highwayman, and they continue as a team, but some people begin suspecting her identity, and she risks death if she continues her nefarious activities.