During World War I, Arthur Morgan, an inventor from the South who has perfected a revolutionary airplane engine, needs money to complete his work because his family fortune was lost during the Civil War. A German spy offers to buy his invention, but Arthur refuses, after which the spy tries to capture Arthur's sweetheart and then seduce him through the wiles of the Countess Von Shoenburg. When the spy finally resolves to destroy Arthur's workshop, Rover, the family dog, carries the bomb away and drops it by the tree behind which the agent is hiding.

Features a screenplay written by the original novelist Hall Caine.

Former student Raskolnikov is pushed to murder when struggling to pay the rent on his apartment. When the murder is being investigated by the police, Raskolnikov struggles between trying to hide his guilt and the pressure to confess.

Daniel Mylrea is the son of the Bishop of Man, the baron of the Isle of Man, whose temporal power is higher even than that of the Deemster, or governor. The Bishop desires Dan to become a minister, but he prefers to be a fisherman. The Deemster of Man has a son and a daughter, Mona and Ewan. Dan and Mona are in love. She consents to marry him when he can obtain her father's consent. Ewan, her brother, decides to become a clergyman, even in the face of his father's insistence that he take up business as a vocation. The Deemster opposes Dan's suit for Mona's hand because he has fallen from his high estate as the son of the Bishop by becoming a fisherman.