King of the Mounties

King of the Mounties 1942 is a Republic film serial.

Carol, determined to carry on her fathers work, manages with Sergeant Kings help to prevent the axis spies from capturing the device her father invented. When the spy ring makes a last desperate attempt to capture the device from the cabin in which she is hiding out, she destroys it rather than let it fall into enemy hands. She is kidnapped and taken to a volcano crater where the spy ring has its headquarters. It is up to Sergeant King to rescue her.King of the Mounties was budgeted at 136,320 although the final negative cost was 139,422 a 3,102, or 2.3, overspend. It was the cheapest Republic serial of 1942. ........

Source: Wikipedia