Over Secret Wires Filming Locations

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. Dyer writes to a large electrical supply house in Portland and learns that a powerful radio equipment has been sold to Ralph Bell, an artist. Dyer sets out to visit Bell, who is engaged in painting the ruins of the Mission of Santa Rosa to cover his real occupation, that of British secret service agent. Dyer and his assistant gain admittance to the Mission, interview Bell, whose suspicions are lulled by the invalid appearance of Dyer. Dyer goes into the town of the Mission but he is unable to find any incriminating evidence, as Bell has his apparatus carefully concealed. A few nights later Dyer and Calhoun from the window of their bedroom in the hotel see a suspicious light in the tower, and set out to investigate. Bell meanwhile is busy in the tower transmitting messages to British fleet off the coast and a naval engagement takes place in which the Germans are defeated. Dyer and his man arrive at the tower and Dyer climbs the vines. As Dyer is about to take Bell into custody the man is struck by a bolt of lightning and killed while the wireless apparatus is entirely demolished.