Over Secret Wires (1915)

Amos Dyer receives word from Washington that there are wireless messages being transmitted from a point in Oregon to foreign battleships off the Pacific Coast. Dyer, the Secret Service representative on the Coast, sets out with his assistant, Calhoun. He arrives, assumes the disguise of an invalid being wheeled about in a chair by his assistant and interviews the regular wireless operator at that point. The suspicions of the Secret Service Department are verified.