The Shadow rescues Margot Lane who's been kidnapped by pyromaniacs.

In the past three months eighteen ships, all of varying size and service, and all from different countries, have been mysteriously attacked and sunk in the Atlantic, creating a worldwide panic with passenger reservations and freight shipments being cancelled, and even frightened crews deserting their ships.

An inmate who's about to go to the electric chair, convinces his bother to seek revenge on those who put him on death row.

A demented old hag living with her hunchback son kidnaps four boys and holds them captive in their mansion. Two criminals also stay in the mansion, using the place as a hideout. When The Shadow tries to rescue the boys, a pack of vicious dogs are released and chase him up a tree.

A phony mystic conducts seances at society parties in order to rob the women of their jewels. Commissioner Weston believes The Shadow is behind the theft, but Lamont proves him wrong and reveals how the mystic is able to distract his audience, so that he can commit his crime without notice.

A man who's looking for a job mistakenly becomes involved with a bank robbery. He is later sentenced to death for a cop killing he didn't commit. The Shadow investigates and locates a missed piece of evidence, which helps free the wrongly accused man.