"Chamber of Doom" is the eighth of 15 chapters comprising Dick Tracy's G-Men, a serial produced in 1939 and released in 15 minute cliffhanger style increments.
Tracy and his G-Men recover stolen government plans in a lumber yard. Spy Zarnoff arranges a new communication method with a fur company in which invisible messages are written on hides to be sent overseas. Investigating recovered aircraft plans, Tracy follows a man named Martin who leaked the plans. While searching the fur company, Dick is knocked unconcious and put into a enclosed room slowly filling with poison gas.
Tracy and his G-Men recover stolen government plans in a lumber yard. Spy Zarnoff arranges a new communication method with a fur company in which invisible messages are written on hides to be sent overseas. Investigating recovered aircraft plans, Tracy follows a man named Martin who leaked the plans. While searching the fur company, Dick is knocked unconcious and put into a enclosed room slowly filling with poison gas.