A sleazy PI basking on a yacht is dragged under and drowned by frogmen. The PI had just visited Britt Reid, alleging that a dead gangster who framed Reid's father had faked his death and is now back in town, and offering to sell the publisher further information. Reid didn't believe him THEN, but now suspects a zillionaire confined to a yacht is involved. The coroner rules the drowning accidental, tying the DA's hands and forcing Reid to adopt his Green Hornet criminal persona to apply pressure. Reid also dispatches his secretary to rifle the PI's office for what he had tried to sell, but she is caught in the process by thugs, and attempts to protect herself and her boss by claiming to be the dead man's kept-in-the-dark secretary. Nevertheless they take her to THEIR boss, the wealthy recluse, who believes her but adds that she now knows too much about him to be set free. The next morning a young woman is found dead in the harbor.
—David Stevens (& Ted Watson)