Navy sailors are being murdered, suffocated by a plastic film that Navy was developed in secret, and each marked with a dead black black widow spider. Mike is given the case, but Dan and Joan stumble across the next victim. When Mike and Joan are captured it's up to the Blue Beetle to find the crooks with help from the local entomologist's club.; Dan, Mike and Joan know something is up when homeowners start burning their own homes and turning themselves in for arson. But Blue Beetle gets into trouble when Lady Medusa hypnotizes him to be her spy on the police force.; Blue Beetle narrates the crime career and superstitions of the Fleagle Brothers.