Lee Graham (Bruce Bennett) and Johnny Davis (Frank Albertson) are U.S. government agents, aided by Ann Carter (Leslie Brooks), assigned to prevent German spies involved in a telephone-tappin... Read allLee Graham (Bruce Bennett) and Johnny Davis (Frank Albertson) are U.S. government agents, aided by Ann Carter (Leslie Brooks), assigned to prevent German spies involved in a telephone-tapping scheme from infiltrating a California war-defense plant. To help them in their cause Lee... Read allLee Graham (Bruce Bennett) and Johnny Davis (Frank Albertson) are U.S. government agents, aided by Ann Carter (Leslie Brooks), assigned to prevent German spies involved in a telephone-tapping scheme from infiltrating a California war-defense plant. To help them in their cause Lee invents an ingenious word-scrambler which leads to the round-up of the German spies.