Since only the other professors know the combination to the Science Associates safe, Jeff King (Tristram Coffin) locks the plans for Professor Millard's decimator in the safe as bait to trap Dr. Vulcan. In the late hours of the night, the trap is sprung when one of the professors does indeed steal the plans from the safe! Is Dr. Vulcan finally captured? (HINT: This is only chapter 8 of 12.) (1949 - Republic Pictures)